Part C: Supporting Documents

Appendix A: Flood and Floodplain Management Flood Management Flood management is used in the broad context of Emergency Management as described in the Emergency Management Manual (EMV 2016). The objectives are to ensure that the following components of emergency management are organised to facilitate planning, preparedness, operational coordination and community participation: Prevention: the elimination or reduction of the incidence or severity of emergencies and the mitigation of their effects, which are part of the work plans and Strategy Action Plan requirements under the under the Emergency Management Act 2013. Response: the combating of emergencies and the provision of rescue and immediate relief services. Note that the Victoria State Emergency Service is the combating agency for floods. Recovery: the assisting of people and communities affected by emergencies to achieve a proper and effective level of functioning. The Figure A-7 below (adapted from the Emergency Management Manual 2016) shows this model as it relates to flood management. It should be noted that prevention, response and recovery activities overlap. These are not necessarily phases or stages of emergency management, as the relevant activities are carried out as needed and not always sequentially.

PREVENTION Prevention and RESPONSE ACTIVITIES Response ACTIVITIES • Risk Management • Warnings Rescue • Legislation Flood • Regulation Temp. flood structures Searches • Land use controls • Enforcement • Planning • Preparedness • Community Awareness • Rebuilding • Evacuation • Training • Restoration • Relief centres

• Community action • Temporary • Advocacy accommodation RECOVERY AND • Registration PREVENTION RECOVERY RESPONSE ACTIVITIES AND • Counselling RECOVERY

• Personal support PREVENTION • Material aid RESPONSE AND • Community programs RECOVERY • Financial assistance

Figure A-7: Flood Management in the Emergency Management Context

80 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 Floodplain management Floodplain management comprises the prevention activities of flood management together with related environmental activities as illustrated in Figure A-8 (adapted from Victoria Flood Management Strategy 1998). The significance of the distinction between flood management and floodplain management is that various lead agencies, such as CMAs, have key roles in floodplain management activities while other agencies such as Emergency Management Victoria, Victoria State Emergency Service and Department of Health and Human Services have key roles in response and recovery activities.

 Floodplain Management 

PREVENTION RESPONSE ACTIVITIES ACTIVITIES Activities Environmental Environmental

RECOVERY

 Flood Management 

Prevention Activities Environmental Activities • Victorian Floodplain Management Strategy Preservation and Enhance of: • Regional Catchment Strategies • Flora & Fauna • Regional Floodplain Management Strategies • Wetlands • Floodplain Management Plans • Landscape interest areas • Best Practice Guidelines • Traditional Owner interest areas • Flood Information & Maps • Archaeologic interest areas • Flood Mitigation Works • Flood conveyance • Land Use Planning Controls • Flood storage • Building Controls • Stream stability • Flood Warning • Water quality • Community Awareness • Education & Training • Research Figure A-8: Floodplain Management in the Flood Management Context

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 81 Appendix B: Consultation Material to Promote Stakeholder Discussions and Input Consultation material was prepared for stakeholder consultation in two formats: firstly by local government areas (for urban centres), and secondly by one single whole of region area (for rural areas along large river/creek reaches). A stocktake of past studies and achievements was summarised for urban centres and rural areas, including an assessment of information gaps and potential flood risks in tabular format. A first “best” assessment rankings were applied to the four tools used to enhance flood resilience (i.e. Flood mitigation, Total Flood Warning System, Land-use Planning and Municipal Flood Emergency Plans) The same background wording was applied to the eight local government/regional areas with locality plans that was distributed at the 15 community workshops and placed on the Goulburn Broken CMA’s website, allowing opportunities for submissions. Below is a copy of the introductory wording used for each local government/regional area followed by specific tables providing information on rankings, stocktakes and priorities.

Flood risk assessment and draft priority rankings for stakeholder discussion Community input is needed to prioritise where flood knowledge needs to be improved through flood studies and flood mapping in (LGA/region) and to determine actions to reduce the risk of flooding. This summary provides a list of studies for towns in (LGA/region) and draft priorities for flood mitigation actions. How to read the table below The column to the left ranks flood risks (1: low, and 5: high), taking into account the possible damage from different sized floods and how often they are expected to happen. The measure of the yearly average cost of floods is known as Annual Average Damage (AAD). The two columns in the centre of the table show: • Flood studies that have been (or soon will be) completed for towns in your local government area. • Recommendations from these studies that have been implemented (or are under way) and other relevant comments or observations.

The columns to the right of the table show DRAFT priority rankings [Low (L), Medium (M), High (H) and No Action (-)] for actions that reduce risk of flooding such as: • Mitigation works (e.g. levees, retardation basin, and floodways) • Flood warning systems (e.g. flood watch, flood warning broadcasts and action plans) • Land use planning (e.g. flood overlay control in planning schemes) • Municipal flood emergency plans (developed by council, VICSES and other agencies with flood-management responsibilities)

Please review this summary and provide feedback by: • attending one of the community sessions being held across the catchment during February; or • completing the feedback form on the website www.gbcma.vic.gov.au

82 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 Terminology Annual Average Damage (AAD), expressed in dollar terms, is the average damage per year that would occur in a particular area from flooding over a very long period of time. This provides a basis for comparing the economic effectiveness of different projects. For more information on risk assessment methodology, please see the Regional Floodplain Management Strategy section of the website. Annual Exceedance Probability (AEP) is the likelihood of occurrence of a flood of given size or larger occurring in any one year. FloodSafe is a whole community program designed to prepare and empower the community with the skills and knowledge to appropriately prepare for, respond to, and recover from floods. Municipal Flood Emergency Plan (MFEP) is a plan prepared and maintained by each municipal council, under the Emergency Management Act 1986, which identifies the municipal resources available, and how they are to be used, for flood prevention, response and recovery. Regional Floodplain Management Strategy (RFMS) (under development) will replace the previous regional strategy (2002) and aims to help manage flood risk by seeking community input to prioritise where flood knowledge needs to be improved. The priorities will be detailed in a rolling three-year regional work plan that can be used by local communities to secure funding for various flood management activities.

Specific Local Government/Regional area tables and maps

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 83 Benalla Rural City Council

Figure 1. Benalla Rural City Council area showing towns and planning scheme flood overlay controls

84 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 Table 1. Benalla Rural City risk assessment (ranking 1: low, and 5: high) Draft priority rankings for stakeholder discussion: Low (L), Medium (M), High (H) and No Action (-) (for urban centres)

Summary of implemented study recommendations Name AAD Summary of past and existing studies (Other comments) System Municipal Flood Emergency Plans Emergency Mitigation Works Land Use Planning Total Flood Warning • Documentation & Review of the 1993 Victorian • No flood zone or overlay controls exist Floods Volume 4 Broken River Catchment Floods • Upload mapping products from study into (Hydro Technology, 1995) planning scheme • Granite Creek Regional Flood Study (Water • Prepared 1% flood contour in Flood Atlas online Baddaginnie 2 - L H H Technology, nearing completion) • Update MFEP • Consider possible flood warning arrangements. Likely to rely on BoM flood warning products such as Flood Watch

• Benalla Floodplain Management Study (SR&WSC, • 1% AEP flood levels declared 1984) • Total Flood Warning System implemented • Benalla Flooding Investigation: Flood of 3-4 • Benalla Water Management Scheme October 1993 (Willing & Partners, 1994) Implemented including vegetation thinning. • Documentation & Review of the 1993 Victorian Additional installation of railway culverts proved Floods Volume 4 Broken River Catchment Floods ineffective and impracticable and on hold (Hydro Technology, 1995) indefinitely • Total Flood Warning System (CT Management, • Flood Smart property information rolled out in 1997) 2009. • Flood Response Guidelines, Benalla Township and • Benalla Flood Information System web portal Surrounds (Delatite Shire (1997) (Cardno, 2016) is being developed Benalla 5 • Benalla Floodplain Management Study (Cardno • FloodSafe Guide drafted - - H H Willing, 2002). • Property Information Statements prepared • Benalla Waterway Management Scheme (Benalla • Need new flood zone and overlay controls for Steering Committee, 2004) planning scheme • Benalla Floodplain Management Study – Flood • Council remains commitment to manage water Study (Willing & Partners, 2005) management scheme • Lake Nillahcootie Flood Study (Cardno, 2008) • Benalla: Review of Floodplain Management Works (Cardno, 2009) • Benalla Flood Risk Review of Flood Cut Option (Cardno 2009) • Benalla Flood Information Portal Report (Cardno, 2016) • Nil • Approx. 60 buildings identified (from 2015 aerial photography) • Flood overlay controls are required as evident by captured 2012 peak flood levels Devenish 0 • Suspect that flooding occurs from Broken Creek - - M M overflow • Scoping Study is required to at least to provide flood mapping • No LiDAR or detailed ground information exists

• Nil • Town has a number of deeply incised waterways Glenrowan commending very small catchments in the order (Rural City of 0 of 100 ha. - - - - Wangaratta) • There may be some overland drainage issues beyond the scope of this RFMS

• Nil • LiDAR shows that the town is on a significant high terrace above the floodplain by some three to Swanpool 1 - - - - four metres • No further action

• Nil • LiDAR shows that the bulk of the town is several metres above the adjacent floodplain. • Town has two localised waterways Tatong 1 • Dwellings located west of town are relatively low - - M L • Consider scoping flood study to improve flood mapping. This will assist to identify any further work

• Nil • The bulk of the buildings are on land significantly above the Boosey Creek floodplain • Several buildings could be exposed to flood risk Thoona 0 - L M L • Desktop investigation required to prepare flood overlay controls to safeguard from flood risk for new buildings

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 85 Campaspe Shire

Figure 1. Campaspe Shire area showing towns and planning scheme flood overlay controls

86 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 Table 2. Campaspe Shire risk assessment (ranking 1: low, and 5: high) Draft priority rankings for stakeholder discussion: Low (L), Medium (M), High (H) and No Action (-) (for urban centres)

Summary of implemented study recommendations Name AAD Summary of past and existing studies (Other comments) System Municipal Flood Emergency Plans Emergency Mitigation Works Land Use Planning Total Flood Warning • Corop Lakes Scoping Study (GHD, 2012) • Cornella Creek and its floodplain lies east of town • The land upon which the primary school is located is subject to flooding. A house east of town is reported to have water under it. Recent Shire works have resolved flooding issues for other houses • GMW has operational procedures for the Colbinabbin 1 Waranga Channel and a number of flood doors - M L M • Improvement in communications about flood operations between GMW and communities is ongoing (a recommendation of scoping study) • Parts of the town is known to be subject to overland flooding from the Camel Ranges that lie to the west. However, no knowledge of any above house floor flooding

• Flooding of Tongala-Stanhope Irrigation District - • No known flooding issues to date. Shire has no March 1950 & Recommendations for Improving records of any above house floor flooding over the Girgarre 0 the Surface Drainage (SR&WSC, 1951) past 40 years. - - - - • Shire has recently installed a retardation basin, which is designed to cater for a 1% AEP flood

• Kyabram Drainage System – Design Basis Report • Low-lying areas are subject to overland flooding on Kyabram Drainage Improvement Works (GHD, from localised intense rainfall 1995) • Study recommendations implemented including • Kyabram Drainage System – Surface Drainage pump station to remove excess floodwater to Strategy (GHD, 1996) storage areas to the south of town • Flood Contour Review (GBCMA, 2011) Shire is • Other recommendations from the 1994 report still currently designing 1% AEP upgrade to McEwen remain outstanding, i.e. upgrade of McEwen Road Road east and west retardation basins sumps and construction of Waratah Street are still • to be completed. Once completed there will still Kyabram 5 be a number of houses inundated by a 1% AEP L - H - flood. • Require scoping study to review old study assumptions against new methods contained in Australian Rainfall and Runoff, and to identify any further work. For instance, the setting of floor levels could be based on pump failure (i.e. no pumps) • Flood overlay controls need updating (partly completed by GB CMA)

• Rushworth Overland Flood Study comprising the • Mitigation works implemented to reduce following: exposure from over floor flooding to some o Southern catchment design (Moore commercial buildings and Esmonde Streets) • Need overlay flood controls for identified o Western Catchment Design (Parker overland flow paths in planning scheme Rushworth 0 and Esmonde Streets) • Rely on available BoM flood warning products - - M M o Norther Catchment Design (Moore such as Flood Watch and High Streets) o CBD – High Street o These studies and designs were all finalised in 2014 • Stanhope Drainage Scheme 1973 • Low-lying depression exists south of the town. • Flood Data Transfer – Flood Mapping (NRE, 1998) However, there is no known history of flooding Stanhope 1 - - - - within the township boundary • Further studies are not warranted at this time

• Tongala Drainage Scheme (Proposed Drainage • The edge of the town (to the north) lies within a Master Plan) (GHD, 1984) natural depression, which is shown in the flood overlay controls in the planning scheme • Elsewhere, a significant number of recorded peak 1974 flood levels exist but without any flood overlay controls. However: o The Shire of Campaspe has advised (during the preparation of the 2002 RFMS) that the area is served by a drainage scheme incorporating Tongala 1 - - M-H M Retardation Basins that caters for the 1% AEP storm o Drainage works since that time has meant that areas outside the retardation basin do not flood. In 2012 water in the basin reached the boundaries of the 1% AEP storage • No further study is envisaged other than for the Shire to monitor the performance of the drainage system

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 87

Summary of implemented study recommendations Name AAD Summary of past and existing studies (Other comments) System Municipal Flood Emergency Plans Emergency Mitigation Works Land Use Planning Total Flood Warning • Nil • Localised drainage path identified to the west of Wyuna 1 town - - - - • No known flooding issues identified

88 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 Greater Bendigo City Council

Figure 1. Greater Bendigo City Council area showing towns and planning scheme Rural Living Zone (RLZ)

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 89 Table 1. Greater Bendigo City Council risk assessment (ranking 1: low, and 5: high) Draft priority rankings for stakeholder discussion: Low (L), Medium (M), High (H) and No Action (-) (for urban centres)

Plans Summary of implemented study recommendations Name AAD Summary of past and existing studies (Other comments) System Municipal Flood Emergency Emergency Mitigation Works Land Use Planning Total Flood Warning • Nil • There is approx. 20 buildings scattered throughout the area Costerfield 0 • This location is on top of the catchment and has - - - - two minor drainage lines • No further action

• Nil • Similar to Costerfield Costerfield 0 • Several small tributaries meet south of the area - - - - South and suspect some minor flash flood issues

• Nil • The area zoned Rural Living has transformed the area into a significant number of lots and dwellings. Heathcote • There are a significant number of waterway with East (Rural 0 - L - - relatively small catchment of few square Living) kilometres. • No known flooding issues, but possibly subject to flash flooding

• Nil • The area zoned Rural Living has transformed the area into a significant number of lots and dwellings Heathcote • There are a significant number of waterway with North (Rural - L - - relatively small catchment of few square Living) kilometres • No known flood issues, but possibly subject to flash flooding

• Nil • Several buildings identified Mount 0 • Available LiDAR indicates building are located on - - - - Camel high land above the Cornella Creek floodplain

• Nil • Some 90 small lots exist (approx. 1,000 square metres) with some 15 buildings • Redcastle Creek flows to the west of the subdivision and has a catchment area of some 18 Redcastle 0 - L L L square kilometres • No known flood issues • No ground information exist to assess possible flood impact.

90 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 Greater City Council

Figure 1. Greater Shepparton area showing towns and planning scheme flood overlay controls

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 91 Table 2. Greater Shepparton risk assessment (ranking 1: low, and 5: high) Draft priority rankings for stakeholder discussion: Low (L), Medium (M), High (H) and No Action (-) (for urban centres)

Summary of implemented study recommendations Name AAD Summary of past and existing studies (Other comments) System Municipal Flood Emergency Plans Emergency Mitigation Works Land Use Planning Total Flood Warning • Documentation and Review of the 1993 Victorian • Potential flood impact from levee Floods Volume 5 Lower Goulburn River Floods failure/overtopping upstream of town (Hydro Technology, 1995) • Potential flood impacts from Loch Garry boards • Lower Goulburn Floodplain Rehabilitation Scheme being removed (Water Technology, 2005) • Flood warning arrangements augmented by Bunbartha 1 Goulburn Murray Water. Also from Greater - - L - Shepparton to Daintons Bridge (Shepparton Gauge provide the triggers for Loch Garry board removal operation)

• Flooding of Tongala-Stanhope Irrigation District - • Available data indicates Mosquito Depression (to March 1950 & Recommendations for Improving the west of Cooma) does not impact on the Cooma 1 the Surface Drainage (SR&WSC, 1951) Cooma - - - - • No further action

• Murchison Flood Mapping Study Report (Water • New flood controls need to be incorporated into Technology, 2015) planning scheme East • MFEP update provided (Water Technology) • MFEP update 1 - L H - Murchison • FloodSafe Guide prepared • Flood Warning Services to Murchison in place

East • Peak 2013 flood levels captured • Nil 5 - - H H Shepparton • Shepparton East Flood Study (BMTWBM) final draft completed • Nil • Not subject to riverine flooding • Flood overlay controls are required as evident by captured 2012 peak flood levels Katandra • Scoping flood study is required with a focus of 0 - - H - West improved flood mapping • FloodSafe Guide prepared • Flood intelligence in MFEP

Kialla West 1 • This now part of the Shepparton Mooroopna • See Shepparton Mooroopna - - - - Flood Intelligence Study • Merrigum Flood Study (WBM, 2005) • Planning flood controls, incorporated into planning scheme • 1% AEP flood levels declared Merrigum 3 • MFEP updated - - - L • Flood warning relies on BoM products such as flood watch • FloodSafe Guide should be considered

Murchison 1 • See “East Murchison” above • See East Murchison - L H H

• Shepparton-Mooroopna Flood Study 2 volumes • Large length of GMW Irrigation Channel 19/12 (Sinclair Knight Partners, 1982) along Wanganui Road has been placed • Shepparton-Mooroopna Flood Mitigation Design – underground (circa mid 1980s) Report on Works Options, Draft Discussion • Several properties purchased by RWC within low- Document on Options, and Assessment of Levee lying areas along River Road between Shepparton Options – Summary Report and Appendices and Mooroopna (Sinclair Knight & Partners (1986, 1987 & 1989) • Proposed new urban levees abandoned in 1997 • Mooroopna Flood Mitigation Scheme (RWC, 1989) due to lack of agreement • Documentation and Review of the 1993 Victorian • Total Flood Warning System implemented in 2007 Floods Volume 5 Lower Goulburn River Floods – including flood warning service by BoM and (Hydro Technology, 1995) community information • Mooroopna Water Management Scheme: • MFEP updated 2007 Shepparton/ Proposed Mooroopna Levees – Report on • Flood zone and overlay controls incorporated into 5 - - H H Mooroopna Submissions to Exhibited Scheme Document (NRE, planning scheme in 2004 1997) • 1% AEP flood levels declared. • Shepparton-Mooroopna Floodplain Management • MFEP, mapping, flood levels and community Scoping Study – Final Report (Sinclair Knight Merz, intelligence require updating upon completion of 1998). the latest study. • Shepparton Mooroopna Floodplain Management • FloodSafe Guide prepared in 2014. Study – Stage 1 Technical Report (SKM, 2002) • Shepparton Mooroopna Floodplain Management Study – Stage 2 Technical Report (SKM, 2002) • Greater Shepparton City Council Flood Warning and Emergency Management Project (Water Technology, 2007) • Shepparton Mooroopna Flood Intelligence and Mapping Study (Water Technology – ongoing)

92 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028

Summary of implemented study recommendations Name AAD Summary of past and existing studies (Other comments) System Municipal Flood Emergency Plans Emergency Mitigation Works Land Use Planning Total Flood Warning • Documentation and Review of the 1993 Victorian • FloodSafe Guide prepared Floods. Volume 4 – Broken River Catchment • Flood intelligence in MFEP Tally- 1 Floods (Hydro Technology, (1995) • Flood controls needs updating M - H - garoopna • Recorded 2012 peak flood levels

• Mosquito Drain 36 (Tatura Bypass Drain) Concept • Flood control integrated into planning scheme Report (SKM, 1999) • 1% AEP flood levels declared • Tatura Floodplain Management Plan (WBM, 2006) • Civil mitigation works implemented (railway culverts, Undera Road culvert, lowering pathway and Retardation Basin embankment) Tatura 5 - - - - • Council remains committed is managing civil works • Mapping in MFEP • No specific flood warning – rely on Flood Watch products from BoM

• Nil • Desktop review of LiDAR (ground level) data indicates a low-lying depression exist that would flood from the Goulburn River, otherwise the Toolamba 1 town is well above flood level - L M M • Require new flood overlay controls • Further desktop study to determine need for TFWS, MFEP

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 93 Mansfield Shire

Figure 1. Mansfield Shire Council area showing towns and planning scheme flood overlay controls

94 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 Table 1. Mansfield Shire risk assessment (ranking 1: low, and 5: high) Draft priority rankings for stakeholder discussion: Low (L), Medium (M), High (H) and No Action (-) (for urban centres)

Summary of implemented study recommendations Name AAD Summary of past and existing studies (Other comments) System Municipal Flood Emergency Plans Emergency Mitigation Works Land Use Planning Total Flood Warning • LiDAR ground level information indicates that the land is well above both the Full Supply Level of Bonnie Doon 1 - - - - • Nil Lake Eildon and the 1% AEP flood level. • No further action.

• Three buildings have been identified (from 2015 aerial photography) for the area. • The Raspberry Creek flows to the east of the Castle Point development and has a catchment of some twelve (A1 Mine 0 • Design Flood Hydrographs for the Goulburn and square kilometres - - - - Settlement) Broken River Catchments (Jacobs, ongoing) • No detailed ground level information exists. However, from past site visits, the buildings appear elevated above the floodplain level • No further action

• The site essentially includes buildings and works associated with a school camp • LiDAR ground level information indicates that the site of the buildings are well above Howqua Valley Howqua 1 • Design Flood Hydrographs for the Goulburn and floodplain. - L L L Broken River Catchments (Jacobs, ongoing) • Need to confirm that the above judgement by undertaking a regional floodplain hydraulic modelling assessment with input from the hydrologic study (flow estimates) findings

• This town is possibly the most at risk community in the Mansfield Shire • Flood overlay controls now incorporated into planning scheme; however, the mapping methodology is somewhat arbitrary • Several homes have been identified as potentially at risk of over floor flooding, including significant • Jamieson Flood Scoping Study (SKM, 2002) flood risk at the caravan park Jamieson 2 • Design Flood Hydrographs for the Goulburn and • At the very least the town needs a further - H H H Broken River Catchments (Jacobs, ongoing) hydraulic modelling assessment based on new LiDAR capture and river surveys (to determine flood extents etc.) with input from the hydrologic study (flow estimates) findings • Scoping study into possible flood warning improvement is required – the BoM flood warning products such as Flood Watch is currently the only tool available

• Field reconnaissance carried out by GB CMA staff mapped the floodplain extents for the newly Maindample 1 • Nil adopted flood overlay controls. This assessment - - L L suggests a small proportion of buildings maybe exposed to flood risk.

• Mansfield Flood Study – Final Report (Earth Tech, • Flood zone and overlay controls have been 2005) updated to reflect latest mapping. • Mansfield Flood Study Extension – Supplementary • There are approx. three dwellings at risk of over floor flooding and a further 50 properties subject Mansfield 3 Report (Earth Tech, 2006) - M - M • Mansfield Flood Intelligence and Mapping (GB to flood inundation for a 1% AEP type flood CMA, 2014) • Suggest a review of possible flood warning needs • Design Flood Hydrographs for the Goulburn and • Carry out floor level survey to determine Broken River Catchments (Jacobs, ongoing) appropriate property listing in the MFEP • Approx. 75 buildings exist in Merrijig which are Merrijig 1 • Design Flood Hydrographs for the Goulburn and elevated above the Delatite River floodplain - - - - Broken River Catchments (Jacobs, ongoing) • No further Action

• Approx. 30 buildings exist in the town and located Merton 0 • Nil well above the floodplain areas. - - - - • No further action

• Field reconnaissance carried out by GB CMA staff mapped flood extents for newly adopted flood overlay controls in the Mansfield Planning Scheme. Mapping suggests that a small • Design Flood Hydrographs for the Goulburn and Woods Point 0 proportion buildings maybe exposed to flood risk. - - L L Broken River Catchments (Jacobs, ongoing) • LiDAR ground level information is consistent with the above findings. • This town should be included as part of the regional study area for upper Goulburn

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 95 Mitchell Shire

Figure 1. Mitchell Shire Council area showing towns and planning scheme flood overlay controls

96 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 Table 1. Mitchell Shire risk assessment (ranking 1: low, and 5: high) Draft priority rankings for stakeholder discussion: Low (L), Medium (M), High (H) and No Action (-) (for urban centres)

Plans Summary of completed activities Name AAD Summary of past and existing studies (Other comments) System Municipal Flood Emergency Emergency Mitigation Works Land Use Planning Total Flood Warning • Flooding from both Sunday and Dry creeks has some flood impacts on the town as well as overland flooding issues Broadford 2 - M H H • Nil • Requires a flood study (a study could be coupled with other towns and regional areas along Dry and Sunday creeks)

• Update MFEP Kilmore 0 • Kilmore Flood Study and Intelligence Study (BMT • Place flood overlay controls in planning scheme L L H H WBM, ongoing) • Flash flood warning services to be considered

• Dry Creek flows along the eastern side of the town and railway. LiDAR ground information indicates that the town is well above Dry Creek Kilmore East 0 • Nil • Several small drainage lines traverse through the - L M L town and may have some overland flooding issues • Investigate flooding in a regional approach along Dry and Sunday creeks including its towns

• Approx. 170 buildings have been identified (from 2015 aerial photography) • The town has developed as two distinct areas, namely to the north (Township Zone) and in the south (Rural Living Zone). • Mollisons Creek flows through the northern Pyalong 0 - - L L • Nil portion of town • LiDAR ground information indicates that Mollisons Creek is deeply incised and flooding of the urban areas is unlikely • Carry out a desktop study (or scoping study) to confirm or otherwise any flooding issues

• Approx. 65 buildings have been identified (from 2015 aerial photography) • Dabyminga Creek flows along the east of the developed areas and commands a catchment area of approx. 38 square kilometres. • LiDAR ground information indicates that Reedy Creek 0 - - H L • Nil Dabyminga Creek is deeply incised and flooding of the urban areas is unlikely • Investigate flooding in a regional approach along Dry and Sunday creeks including its towns • Flood warning rely on BoM flood warning products such as Flood Watch

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 97

Plans Summary of completed activities Name AAD Summary of past and existing studies (Other comments) System Municipal Flood Emergency Emergency Mitigation Works Land Use Planning Total Flood Warning • Seymour – Report on Flooding from Goulburn River (SR&WSC, 1981) • Appendix F: Lake Eildon – Effect on Flood Frequencies at Eildon (SR&WSC, 1981) • Seymour Floodplain Management Study (SR&WSC, 1984) • Seymour Flood Mapping Study – Final Report (WBM Oceanics , 2001) • Total Flood Warning System–Goulburn River to Seymour • Seymour Flood Mitigation Communication Investigation – Final Consultants Report to Council (WBM Oceanics Australia, 2006) • Seymour Flood Mitigation Project - Preliminary Design Report (John Webb Consulting, 2009) • Total Flood Warning System has been delivered • Seymour Flood Mitigation Project - Draft Report • MFEP has been updated to reflect existing (GHD, 2013) conditions without proposed levees • Letter report on the cost of compensation to • Information Guides prepared in 2001 has been landowners for land acquisition (PW Newman P/L, updated with FloodSafe guides by VicSES (2015) Seymour 5 2013) • Flood zone and overlay controls have been H M H H • Archaeological Assessment of a Proposed Levee at updated to reflect existing conditions without Seymour (Heritage Insight, 2013) proposed levees. • Seymour Flood Mitigation Project – Preliminary • Functional levee design is underway Cost Estimate (Flagstaff Consulting Group, 2013) • A planning scheme amendment for the levee is in • Letter report on the outcomes of flood modelling preparation and consideration. (BMT WBM, 2013) • Seymour Flood Mitigation Project – Preliminary Construction Methodology (Flagstaff Consulting Group, 2013) • Letter report on increase in land values from rezoning (PW Newman P/L, 2014) • Memorandum – Seymour Flood Mitigation Cost Benefit Analysis (Aither, 2014) • Terrestrial and aquatic assessment for the proposed Seymour levee – proposed realignment (Ecology and Heritage Partners, 2015) • Proposed Flood Levee, Seymour – Draft Cultural Heritage Management Plan (Heritage Insight, 2014) • Dabyminga Creek flows along the eastern side of town and commends a catchment of some 145 square kilometres. • Approx. 60 buildings have been identified from 2015 aerial photography, with the bulk of them above the 1% AEP flood level Tallarook 1 - - M M • Tallarook Flood Investigation (GB CMA, 2008) • Flood overlay controls require updating • Flood Warning needs to rely of BoM flood products such as Flood Watch • MFEP need to ensure buildings in low-lying land are documented – This can be done using LiDAR and field visits

• Approx. 25 buildings have been identified (from 2015 aerial photography) • Dabyminga Creek flows through the town and commands a catchment area of approx. 60 square kilometres. - - H L Tyaak 0 • Nil • LiDAR ground information indicates that Dabyminga Creek is deeply incised and flooding of the urban areas is unlikely • Investigate flooding in a regional approach along Dry and Sunday creeks including its towns

• Update MFEM • Flood zone and overlay controls required in Whiteheads 1 • Whiteheads Creek and Overland Flood Mapping planning scheme M H H H Creek Study (Cardno, ongoing) • Flash flood warning services needs consideration – Whitehead Creek Gauge exists

98 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 Moira Shire

Figure 9. Moira Shire Council showing towns and planning scheme flood overlay controls

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 99 Table 1. Moira Shire risk assessment (ranking 1: low, and 5: high) Draft priority rankings for stakeholder discussion: Low (L), Medium (M), High (H) and No Action (-) (for urban centres)

Summary of implemented study recommendations Name AAD Summary of past and existing studies (Other comments) System ergency Plans ergency Municipal Flood Em Mitigation Works Land Use Planning Total Flood Warning • Floodplain Management Study • Flood mitigation unlikely to proceed given cost (GHD, 1986) and impracticalities • Flood Mitigation Study (GHD, 1994) • Flood overlay controls are in the planning scheme • Lower Goulburn Floodplain Rehabilitation Scheme • Prepare a FloodSafe Guide 5 – Assessment of Flood Risk to the Township of • Check to see MFEP requires updating with L - - - Barmah and preliminary flood mitigation review property listing available (use floor levels to (SKM, 2008) assessment possible above floor flooding) • Barmah Township Flood Mitigation – Functional • River gauge established with flood class levels and Design (Water Technology, 2012) BoM flood warning service • 1% AEP Flood Contour Atlas available • Nil • Approx. 60 buildings identified (from 2015 aerial photography) • Current flood overlay controls are of low reliability Bearii 1 and new flood mapping would be part of - L L L combined regional flood mapping study, i.e. part of rural levee review • May consider future FloodSafe Guide

• Murray River Floodplain Management Study • Levee system constructed in mid-2000 to protect (GDH, 1986) the Town from a 1% AEP flood • Town Levees Study Final Design (CMPSF • Further work required to explore flood protection 1993) options to protect town from overland flooding • Cobram Flood Mitigation Proposals Water from the East Cobram 5 H - - - Management Scheme Approved Scheme • Flood overlay controls require updating (at Document (NRE, 1996) regional level) • Murray River Regional Floodplain – Dicks/Seppelts • MFEP has been updated levees to downstream of the Creek • Council recommitted to operate and maintain the Confluence Study Report (WT, 2011) levee scheme

• Documentation and Review of the 1993 Victorian • Flood scoping study required 2 Floods Volume 4 (HT, 1995) - M L M • FloodSafe Guide prepared (VicSES, 2015) • Documentation and Review of the 1993 Victorian • Approx. sixty buildings have been identified (from Floods Volume 4 (Hydro Technology, 1995) 2015 aerial photography) • Murray River Regional Floodplain – Dicks/Seppelts • MFEP has been updated 1 levees to downstream of the Ulupna Creek • New food controls need to be implemented from - - L L Confluence Study Report (WT, 2011) regional flood study • Flood contour Atlas needs to be revised • Prepare FloodSafe Guide

• Nil • Approx. 15 buildings have been identified (from 2015 aerial photography) • Located on the Boosey Creek floodplain • Flood overlay controls are required as evident by captured 2012 peak flood levels • Scoping flood study is required with a focus of 0 improved flood mapping - - H L

• Nil • Approx. 10 buildings identified (from 2015 aerial photography) • No riverine type flooding identified 1 • Limited low-lying land subject to localised - - - - drainage inundation shown in flood overlay controls in planning scheme • No further action

• Nathalia Flood Mitigation Report (SR&WSC, 1978) • Approx. eight kilometres of levees constructed in • Documentation and Review of the 1993 Victorian the late 1980s. Floods Volume 4 (Hydro Technology, 1995) • The levees system was upgraded and augmented • Nathalia Flood Mitigation Scheme Audit Report in late 2000s, including temporary flood barriers (FIDS, 1996) • Council remains committed in managing the flood • Broken Creek Management Strategy (SKM, 1998) protection system Nathalia 2 - - - - • Nathalia Floodplain Management Plan (SMEC • TFWS Implemented including new flow gauges, Victoria, 2005) and new BoM prediction services • Detailed design (SKM?) • MFEP has been updated • TFWS Investigation CT Management? • FloodSafe Guide to be prepared • New flood mapping required in planning scheme (rural study area)

100 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028

Summary of implemented study recommendations Name AAD Summary of past and existing studies (Other comments) System ergency Plans ergency Municipal Flood Em Mitigation Works Land Use Planning Total Flood Warning • Documentation and Review of the 1993 Victorian • Flood study component completed in 2014 Floods Volume 4 (Hydro Technology, 1995) • Further work to extend modelling is now • Broken Creek Management Strategy (SKM, 1998) underway • Flood Study (WT, 2012) • Mitigation options are currently being explored Numurkah 5 • Numurkah Floodplain Management Study including structural works and TFWS H H H H (ongoing) • The MFEP has been updated and proved useful during 2016 floods • New flood zone and overlay controls are required • Flood contour Atlas needs updating

• No flood study • Approx. 45 buildings identified (from 2105 aerial photography) St James 1 • New flood overlay controls are required as - - H M evident by captured 2012 peak flood levels • Scoping flood study is required

Tungamah 3 • 1% AEP Flood Declaration Project (RWC, 1984) • Floodplain management study required H H H H

• Nil • Approx. 55 buildings have been identified (from • Significant Drainage Line Mapping within the SIR 2015 aerial photography) 0 (GBCMA, 1998) • Not identified prone to riverine type flooding - L L L • Part of Waaia subject to drainage issues along natural drainage lines

• Nil • Approx. 55 buildings have been identified (from 2015 aerial photography) • Located on the Sandy Creek Floodplain Wilby 0 - - H L • Flood overlay controls are required as evident by captured 2012 peak flood levels • Scoping Study is required

Wunghnu 3 • Nil • Flood scoping study required MH M M M

• Murray River Floodplain Management Study • Local drainage options are being explored Yarrawonga 4 (GDH, 1986) • New flood overlay controls are required H - H H • Overland Drainage and Flood Study (BMT WBM, • Flood contour Atlas needs updating 2015)

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 101 Murrindindi Shire

Figure 1. Murrindindi Shire Council area showing towns and planning scheme flood overlay controls

102 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 Table 1. Murrindindi Shire risk assessment (ranking 1: low, and 5: high) Draft priority rankings for stakeholder discussion: Low (L), Medium (M), High (H) and No Action (-) (for urban centres)

Summary of implemented study recommendations Name AAD Summary of past and existing studies (Other comments) System Municipal Flood Emergency Plans Emergency Mitigation Works Land Use Planning Total Flood Warning • Flooding occurred from UT creek in 1975 that forms the bench mark for land use planning. This is the current basis of overlay controls in the planning scheme Alexandra 2 L - H H • Nil • Overland flooding has been experienced in the town particularly from a tributary north west of town • Riverine and overland flood study required

Buxton 3 • Acheron River Flood Hydrology Study (BMT WBM, • Floodplain Management Study required M M H H ongoing) • There are two waterways that flow through the town that have catchments under five square kilometres. Furthermore, the waterways traverse through wide open-spaced corridors. • There are some minor drainage lines that feed stormwater to the waterways • There are no current identified riverine flooding Eildon 0 - - L L • Nil issues • Overland flooding associated with drainage lines is unknown • Consider overland flood study • BoM flood warning products such as Flood Watch is possibly the only feasible product given no warning times

• The town is located at the very top of the Great Dividing Range, and has some minor waterways Kinglake have small catchments that are deeply incised. As 0 - - - - Central • Nil such, there are no identified riverine or overland type flooding issues. • No further action

• The town is located at the very top of the Great Dividing Range, and has waterways commanding small catchments that are deeply incised. As such, there are no identified riverine or overland type flooding issues. • However, several drainage lines have been Kinglake East 0 • Nil identified that drain into the waterways - - L L • These drainage lines may have some overland flood issues • Overland flood study should be considered • BoM flood warning products such as Flood Watch is possibly the only feasible product given no warning times

Marysville 1 • Acheron River Flood Hydrology Study (BMT WBM, • Floodplain Management Study required - - M M ongoing) • Approx. 25 buildings have been identified (from 2015 aerial photography) in the town and a caravan park located on further north adjacent to • Eildon to Murchison Flood Modelling Project - the Goulburn River and are affected by depths of Molesworth 1 - L M M Goulburn River GPU Model Documentation flooding up to 500 mm for a 1% AEP type flood. (Water Technology, 2015 – internal document) • Scoping study required (with floor level survey), with finding linked to the MFEP • Flood warning opportunity needs to be explored

• This town is largely undeveloped and rural in nature with approx. 20 buildings • Minor deeply incised waterways traverse the town, which commands catchment areas of Narbethong 0 - - - - • Nil around five square kilometres. • There are no identified riverine or overland flooding issues • No further action

• Both towns are located at the very top of the Great Dividing Range • There are numerous waterways throughout the Pheasant towns and likely to be associated some overland Creek & 0 flooding. - - L L Kinglake • Nil • Overland flood study required West • BoM flood warning products such as Flood Watch is possibly the only feasible product given little or no warning times

• The waterway of Strath Creek runs along the Strath Creek 1 • Nil western edge of the hamlet and commands a - - L L catchment of approx. 62 square kilometres. DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 103

Summary of implemented study recommendations Name AAD Summary of past and existing studies (Other comments) System Municipal Flood Emergency Plans Emergency Mitigation Works Land Use Planning Total Flood Warning • Approx. 25 buildings have been identified (from 2015 aerial photography) in the town that appears to be somewhat elevated. Flood risk is not clear • Carry out a regional flood mapping study that includes this town

Taggerty 1 • Acheron River Flood Hydrology Study (BMT WBM, • Floodplain Management Study required - L H M-H ongoing) • Approx. 30 out of an estimated 110 buildings (from 2015 aerial photography) are affected by depths of flooding up to 500 mm for a 1% AEP • Eildon to Murchison Flood Modelling Project - type flood. Also, the caravan park is partial Thornton 3 - - - M Goulburn River GPU Model Documentation impacted (Water Technology, 2015 – internal document) • Scoping study required (with floor level survey) to inform the MFEP i.e. property listings relating to over floor flooding

• Yea River runs north of the town and is deeply incised Toolangi 0 • Nil • There are no identified riverine of overland - - - - flooding issues • No further action

• Flood zone and overlays incorporated into planning scheme • MFEP has been updated • The main issue for Yea is the caravan park exposed to flood hazard • Flood Warning Prediction Service is now available Yea 2 • Yea Flood Study (Water Technology, 2005) at Yea’s new gauge (2016). Further work is now - - - H required to link new gauge to flood mapping intelligence to MFEP • FloodSafe Guide has been released (check) • In 1973 a major storm over the town created major overland flooding issues • Carry out an overland flood study

104 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 Strathbogie Shire

Figure 1. Strathbogie Shire Council area showing town localities and existing flood controls

Table 1. Strathbogie Shire risk assessment (ranking 1: low, and 5: high) Draft priority rankings for stakeholder discussion: Low (L), Medium (M), High (H) and No Action (-) (for urban centres)

Summary of implemented study recommendations Name AAD Summary of past and existing studies (Other comments) System Municipal Flood Emergency Plans Emergency Mitigation Works Land Use Planning Total Flood Warning • Internal Rural Water Commission file used by GB • Update flood zone and overlay controls in CMA to prepare 1% AEP flood contours (Flood planning scheme Avenel 2 Atlas) for Hughes Creek together with infield flood • Update 1% AEP flood contours in Flood Atlas M M H M overlay controls for planning scheme inclusion. • Flood scoping study required to assess flood • Granite Creek Regional Flood Mapping Study warning needs and emergency planning (check name) (Water Technology, ongoing) • Flood Study – Final Report (CMPSF, 1993) • Total Flood Warning System implemented (need • Euroa Flood Study – Hydraulic Assessment better access to flood data by community) (Lawson & Treloar 1997) • Flood warning services are provided by BoM • Euroa Floodplain Management Study - 2 volumes • Water Management Scheme Implemented by (SKM, 1997). Council including formalising the Castle Creek • Total Flood Warning System (CT Management levee and waterway/floodplain vegetation 1997) Check thinning. Note that vegetation thinning along the • Euroa Water Management Scheme (Steering Seven Creeks were achieved by significant exotic Committee, 1999) tree and weed removal as part of river health • Urban Levee Review (SKM, 2013) program by GB CMA • Euroa Post Scheme Flood Mapping Study (Cardno, • Flood zone and overlay controls in place but Euroa 4 H H H H 2014) require some revision based on latest Study • Levee Upgrade Report (GMR, 2016 – ongoing) • 1% AEP flood contours declared and part of Flood Atlas but need to be revised based on latest Study • Property-specific flood information should be rolled out • Castle Creek levee refurbishment required to ensure 1% AEP performance • Monitoring action plan required to manage sand slugs under rail and Old Hume bridge structures • Council remains committed for manage the water management scheme

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 105

Summary of implemented study recommendations Name AAD Summary of past and existing studies (Other comments) System Municipal Flood Emergency Plans Emergency Mitigation Works Land Use Planning Total Flood Warning • A waterway, with a 26 square kilometre catchment, flows west of the town with small localised drainage lines through the settlement • The area is largely undeveloped and rural in Graytown 0 - - L L • Nil nature • Less than ten buildings identified from available aerial photography • Possible scoping study required

• Granites Creek Regional Flood Mapping Project • Pranjip (Burnt) Creek commends a catchment of (Water Technology, ongoing) some 36 square kilometres • LiDAR ground level data and flood mapping indicates some 25 buildings (identified from 2015 Locksley 1 aerial photography) are on high land above the - - M L estimated 1% AEP flood levels. • Update flood overlay controls in planning scheme • Flood warning requirements may rely on BoM flood watch products

• Nil • Some 100 building exists (from 2015 aerial photography) • LiDAR ground level data suggest some possible Longwood 2 exposure to flood risk - - L L • Some broad-brush mapping included in planning scheme • Scoping flood Study required

• Eight Mile Creek commands a catchment area of some 10 square kilometres that passes the town to the north. A smaller waterway flows south of the town Mangalore 0 - L M L • Nil • No detailed ground level information is available • Major storms passed over the area in early 2016 but the flood impact is unknown • Scoping study is required

• Flood Risk Assessment for Chinaman’s Caravan • Flooding of Low-lying areas including Tabilk Park (SKM, 1999) Depression identified • Nagambie Flood Study – Draft Hydraulics Report • Flood zone and overlay controls are required in Nagambie 1 (BMTWBM – ongoing) planning scheme - - H H • MFEP needs updating • Flood warning requirements may rely on BoM’s Flood Watch products

• Largely undeveloped with few buildings • Winding Creek flows west of town commanding a catchment of some ten square kilometres Old • A small drainage line identified through the town 0 - - L L Longwood • Nil flowing west to east • Rely on available BoM’s products such as Flood Watch • Possible scoping study

• Small waterway flows east of town commending a catchment of some three square kilometres Ruffy 0 • Nil • Possible localised drainage issues rather than - - - - riverine type flooding • No further action

• Some sixty buildings exist in the town (identified from 2015 aerial photography) • Spring, Magiltans and Seven Creeks flow through the town. Strathbogie 0 • Nil • LiDAR ground level data reveals that these creeks - - L L are deeply incised and unlikely to create flooding issues. • Possible scoping study require to determine flood extents

• Violet Town Flood Scoping Study – Final Report • Flood zone and overlay controls prepared and not (GHD/GEO ENG, 2002) yet in planning scheme (await the implementation • Violet Town Flood Study (Water Technology, of mitigation works) 2007) • 1% AEP flood in Flood Atlas online • MFEM Updated Drafted (2011) • Flash flood arrangements have been formulated • Flood Warning arrangements (GMR, 2011) but not implemented Violet Town 4 • Violet Town Floodplain Management Plan (2012, • FloodSafe guide distributed H H H - Water Technology) • Community negotiation on civil mitigation works • Violet Town Floodplain Management Scheme are continuing (2012, Water Technology) • MFEM updated • Detail design for civil mitigation works (GMR Engineering – ongoing) • FloodSafe Guide prepared

106 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 Regional (rural study) areas

Figure 1. Showing rural study areas

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 107 Table 2. Rural study areas risk assessment (ranking 1: low, and 5: high) Draft priority rankings for stakeholder discussion: Low (L), Medium (M), High (H) and No Action (-)

Summary of implemented study recommendations Name AAD Summary of past and existing studies (Other comments) System Municipal Flood Emergency Plans Emergency Mitigation Works Land Use Planning Total Flood Warning Broken Creek

• Flood overlay controls exist in the planning Broken scheme based on flood information from 1993, Effluent which is a reference flood for the 1% AEP flood Tributaries • MFEP updated for towns within the regional area (Pine Lodge, • Documentation and Review of the 1993 Victorian (Congupna and Tallygaroopna) Daintons, 5 - M L M Floods Volume 4 (Hydro Technology, 1995) • A regional flood study is unlikely to improve flood Congupna • knowledge for the 1% AEP type flood. However, it Guilfus & may be warranted to explore flooding patterns for O'Keefe a range for flood magnitudes to improve flood Creek) intelligence and mapping warning information

• Documentation and Review of the 1993 Victorian • New mapping to be incorporated into the Floods Volume 4 (Hydro Technology, 1995) planning scheme. • Broken Creek Management Strategy Part 1 - 2 • Inventory of levees completed in 2005 as part of volumes (Sinclair Knight Merz, 1996) Nathalia Floodplain Management Study Lower Broken • Broken Creek Management Strategy Part 2 - 2 • Regional mapping between Narioka and the 5 - M H H Creek volumes (Sinclair Knight Merz, 1996) Murray River could be carried out but considered • Nathalia Floodplain Management Plan (SMEC a low priority. Victoria, 2005) include regional mapping from • Implication of flood warning to Nathalia will be of Walshs Bridge to Narioka a benefit to downstream areas regional areas to • Nathalia Floodplain Management Study (SMEC, the Murray. 2005) • Broken Creek Management Strategy Part 1 - 2 • Flood overlay controls exist in planning schemes volumes (Sinclair Knight Merz, 1996) that require updating • Broken Creek Management Strategy Part 2 - 2 • New flood height prediction services are currently Mid Broken 5 volumes (Sinclair Knight Merz, 1996) being explored by the BoM to Numurkah H H H H Creek • Numurkah Floodplain Management Study – • Draft MFEP has been prepared Includes regional mapping from Broken Creek Katamatite to Walshs Bridge stream gauges (Water Technology, ongoing) • Documentation and Review of the 1993 Victorian • Flood overlay controls exist in planning scheme Floods. Volume 4 – Broken River • Could carry out a rural flood study to better define (HydroTechnology, 1995) flood intelligence and mapping 3 - L L L Depression • Broken Creek Management Strategy Part 1 - 2 • See further comments in the “Upper Broken volumes (Sinclair Knight Merz, 1996) Creek” • Broken Creek Management Strategy Part 2 - 2 volumes (Sinclair Knight Merz, 1996) • A regional study is required that will include numerous townships – refer to Moira Shire risk assessment for “urban centres” • Broken Creek Management Strategy Part 1 - 2 • Stream gauge exist in Upper Broken • The 1996 Study highlights land management 4 volumes (Sinclair Knight Merz, 1996) - M H M Creek • Broken Creek Management Strategy Part 2 - 2 practices has altered drainage within the region. volumes (Sinclair Knight Merz, 1996) Land management practices needs to be managed • Rural drainage plan required to address both drainage and water quality (not necessary part of the floodplain management strategy)

Broken River

• Flood mapping is poor downstream of Benalla to Stewarton • New flood study required to improve flood Lower Broken intelligence and mapping. This would provide 5 • Documentation and Review of the 1993 Victorian - L H H River Floods Volume 4 (Hydro Technology, 1995) information of flow patterns (including flow distribution into both the upper and lower Broken Creek study areas, and provide intelligence for flood warning and emergency management

• This rural study area includes Holland Creek • Some flood overlay controls exist in planning schemes • A regional flood intelligence and flood mapping Upper Broken • Some rural flood mapping and flood level capture study is required, which can include the towns 2 - M H M River • Design Flood Hydrology for the Goulburn and outlined in the “urban centres” Note the Broken River Catchments (Jacobs, ongoing) assessment of urban centre at a regional rural scale may provide preliminary insight before deciding to carry out a full flood study

Goulburn System

• Some flood overlay controls exist in the planning Acheron scheme but based on limited information 2 • Acheron River Flood Hydrology Study (BMT WBM, - L H L River ongoing) • Stream gauge is established in Buxton with flood prediction services provided by BoM

108 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028

Summary of implemented study recommendations Name AAD Summary of past and existing studies (Other comments) System Municipal Flood Emergency Plans Emergency Mitigation Works Land Use Planning Total Flood Warning Goulburn System (cont.)

• Flood overlay controls exist in the planning. Minor improvements could be included east of Corop Lakes 5 • Corop Lakes Scoping Study (GHD, 2012) Colbinabbin. - - L L • Flood warning arrangements between GMW and community are in place

• Flood mapping required to be updated in the planning scheme • New regional flood study may be carried out but Dabyminga 1 • Tallarook Flood Study (GB CMA, 2008) extends should be extended to include Tyaak and Reedy - L H L Creek into this regional area Creek • No current buildings known to be at risk to over floor flooding

• Design Flood Hydrology for the Goulburn and • Regional flood study required to improve flood Broken River Catchments (Jacobs, ongoing) intelligence and flood mapping utilising hydrologic Delatite River 2 • Desktop flood mapping completed for 2016 flood data from current Jacobs study - L L M overlays using limit recorded peak 2010 flood level and LiDAR ground information • Mansfield Flood Intelligence and Mapping Study • Regional flood mapping required to improve flood Ford Creek 1 (GB CMA, 2014) intelligence and mapping to assist with future - L H M • Design Flood Hydrology for the Goulburn and long-term growth around Mansfield Broken River Catchments (Jacobs, ongoing) • Documentation and Review of the 1993 Victorian • Flood mapping exists in planning schemes but Seymour to found to be inaccurate in some areas 5 Floods. Volume 1 – Summary Report (Hydro - M M M Shepparton Technology, (1995) • Requires regional flood study including operations • Declaration of 1% AEP flood level of Nagambie Weir • Flood overlay mapping exist in planning schemes Granite 5 • Granite Creeks Regional Flood Study (Water • Planning schemes will need to be updated - L M M Creeks Technology, ongoing) following completion of the regional flood study

• Regional flood modelling required following the Howqua River 1 • Design Flood Hydrology for the Goulburn and - L L L Broken River Catchments (Jacobs, ongoing) completion of design hydrology report

• Inquiry into the Lower Goulburn River • Flood mapping products exist that should be (Parliamentary Inquiry, 1968) integrated into planning schemes. • Lower Goulburn Floodplain Management Study – • A flood intelligence map exists relative to the 2 volumes (Cameron McNamara (1987) Shepparton and McCoys Bridge river gauges. • Documentation and Review of the 1993 Victorian • The Lower Goulburn Floodplain Rehabilitation Floods Volume 5 (Hydro Technology, 1995) Scheme project was abandoned in 2005 following • Lower Goulburn Waterway and Floodplain no funding agreement • Requires community workshop to specifically Lower Management Plan – 2 volumes (Sinclair Knight 5 address its willingness to re-examine management M - H H Goulburn Merz, 1996) • Lower Goulburn Levee Audit (SMEC, 1998) options including operation and maintenance • Lower Goulburn Business Case Summary costs associated with the lower Goulburn levees (PricewaterhouseCoopers, 1998) • Flood warning arrangements are in place at the • Lower Goulburn Modified Findlay Scheme (SMEC, Shepparton Gauge that provides adequate 1999) warning to the lower Goulburn. Also, Goulburn Murray Water has arrangements in place for • Lower Goulburn Floodplain Rehabilitation Scheme those within the Loch Garry Flood Protection – 2 Volumes (Water Technology, 2005) District • Rural Levee Assessment (Water Technology, 2013) • Flood overlay controls exist in the planning scheme, based on limited information. • Nil • A regional flood study would improve flood Lower King 1 • 1% AEP flood levels has been estimated based on intelligence and mapping. Ground LiDAR exists - L L L Parrot Creek a limited number of recorded peak flood levels. that would be used to carry out such a study Rural flood. • The area is mostly rural in nature with pockets of rural living along the creeks

• Flood mapping was carried out by on-site inspections around Maindample Maindample • Inspection of aerial photograph indicate few 1 - - - - Region • Nil buildings within the rural areas that surrounds Maindample • A regional flood study is not considered warranted

• Flood overlay controls exist in planning schemes • Goulburn Broken Flood Atlas of 1% AEP flood that requires updating • contours (GB CMA, 2005) Flood Atlas requires updating • Mid Goulburn 5 • Memo - Eildon to Murchison Flood Mapping Total Flood Warning System implemented in 2000 - M H M Project (Water Technology, 2015) with forecasts to Seymour. Community guides • Total Flood Warning System were also prepared • Review flood guides to new FloodSafe format

Goulburn System (cont.)

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 109

Summary of implemented study recommendations Name AAD Summary of past and existing studies (Other comments) System Municipal Flood Emergency Plans Emergency Mitigation Works Land Use Planning Total Flood Warning • Some flood overlay control exist in the planning scheme Sunday & Dry • Some rural flood mapping and peak flood level • This regional study area would include the 1 - H H H Creeks capture townships of Wandong, Heathcote Junction, • No detailed flood studies Kilmore East, Coulson Crossing, Waterford Park and Broadford

• The nature of flooding is largely contained within a series of depression systems Tatura/ • Flood overlay controls exist in planning schemes Tongala 5 • Flooding of Tongala-Stanhope Irrigation District – - L L L • A regional flood study is not warranted as it would Region March 1950 be unlikely to provide any significant new flood knowledge

• This area is between Jamieson to Woods Point Upper 1 • Design Flood Hydrology for the Goulburn and • Regional flood study could be carried out using - M M M Goulburn Broken River Catchments (Jacobs, ongoing) hydrologic data from study

• Flood overlay controls exist in planning schemes, but should be updated to reflect flood study Upper King 1 • Flowerdale Flood Study – Flood Intelligence and findings - M H H Parrot Creek Mapping (GB CMA, 2014) • MFEP should also reflect study findings • Flood warning requirements needs to be explored

• Flood mapping controls exist in the planning scheme Whiteheads • The current study includes overland flood 1 - H H H Creek • Whiteheads Creek Flood Study (Cardno, ongoing) mapping • Flood warning is less than 6 hours. A local warning system needs to be explored

• Yea Flood Study (Water Technology, 2005) • Regional Flood Study would greatly improve flood • 1% AEP flood levels are currently estimated by intelligence and mapping Yea River 1 adding a margin (determined by NRE) to historic - l M M profiles of a moderate flood.

Murray System

• Stream gauges are established in Barmah and Echuca with flood class levels • Murray River Floodplain Management Study • Flood overlay controls exist in planning schemes, but needs to be updated with new mapping from Barmah to (GHD, 1986) 4 the 2005 study - M L M Echuca • Lower Goulburn Floodplain Rehabilitation Scheme (Water Technology, 2005) • The regional study area includes Echuca Village • 1% AEP Flood Contour Atlas available and (Woodbine Drive) • Further work around flood warning products would be useful

• Flood overlay controls exist in the planning scheme, but needs to be updated with new • Murray River Floodplain Management Study information (GHD, 1986) • A number of stream gauges exist where the BoM will issue flood warnings. Need to review MFEP for Cobram to • Murray River Regional Floodplain Study – 5 regional study area in light of 2016 floods – M M H M Ulupna Dicks/Seppelts levees to downstream of Ulupna Creek Confluence Study Report (Water document weak levees Technology, 2011) • Require community workshop to specifically • Rural Levee Assessment (Water Technology, 2013) address its willingness to examine a project to include operation and maintenance costs of the rural levees

• Flood overlay control exists in the planning scheme • Murray River Floodplain Management Study • Extend the Murray River Regional Floodplain Study from Ulupna to Barmah to improve flood Piree Creek (GHD, 1986) 1 intelligence and mapping - M L M to Barmah • Barmah-Millewa Hydrodynamic Model (Water Technology 2005) • Require community workshop to specifically • Rural Levee Assessment (Water Technology, 2013) address its willingness to examine a project to include operation and maintenance costs of the rural levees

Ulupna to • Murray River Floodplain Management Study • Join this regional study area with Murray Piree 3 Piree Creek (GHD, 1986) Creek to Barmah • Rural Levee Assessment (Water Technology, 2013) • Flood overlay control exists in planning scheme • This section of the river is mostly within the Upstream of 1 • Murray River Floodplain Management Study confines of Lake Mulwala - L L L Yarrawonga (GHD, 1986) • Regional flood study would be unlikely to bring substantial new flood knowledge

Murray System (cont.)

110 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028

Summary of implemented study recommendations Name AAD Summary of past and existing studies (Other comments) System Municipal Flood Emergency Plans Emergency Mitigation Works Land Use Planning Total Flood Warning • Flood overlay control exists in the planning scheme Yarrawonga • Murray River Floodplain Management Study • Flooding is largely confined within the Murray 2 - H M H to Cobram (GHD, 1986) Valley until • No detailed flood study exists • Regional flood study required to gained flood intelligence and mapping

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 111 Appendix C: Program logic for program delivery

The logic for the four long-term programs outlined in Section1.5 are • Flood Mitigation (refer to Figure C-10); • Total Flood Warning Systems (refer to Figure C-11); • Land-use Planning (refer to Figure C-12); and • Emergency Management and Access to Flood Information (refer to Figure C-13). In preparing this regional Strategy with stakeholders it has become apparent that the four programs considerably overlay. For instance, the access to flood information not only applies within the emergency management program but is very much a large part of TFWS where access to fit for purpose flood information can provide important education and awareness material to ensure flood resilience. As such, a new program logic for the access to, and sharing of flood information has been developed (see Figure C-14).

Figure C-10: Program logic for flood mitigation program

112 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028

Figure C-11: Program logic for Total Flood Warning Systems

Figure C-12: Program Logic for land-use planning

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 113

Figure C-13: Program logic for emergency management

Figure C-14: Program logic for sharing of flood information

114 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 Appendix D: Summary of Flood Studies, Plans, Work Plans

Table D-18: List of completed scoping studies

Scoping Studies 1. Shepparton Mooroopna Flood Scoping Study (1998) 2. Jamieson Flood Scoping Study (SKM, 2003) 3. Violet Town Flood Scoping Study (GHD, 2002) 4. Corop Lakes Flood Scoping Study (GHD, 2012)

Table D-19: List of completed flood studies

Flood Studies 1. Broken Creek Management Study Stages 1 & 2 (SKM, 1998) 2. Flood Risk Assessment for Chinaman’s Bridge Caravan Park (1999) 3. Seymour Floodplain Mapping Study (WBM Oceanics Australia, 2001) 4. Seymour Floodplain Mapping Study Addendum to Final Report – Whiteheads Creek Flood Mapping (WBM Oceanics Australia, 2001) 5. Lower Goulburn Rehabilitation Project Socio-economic Issues Assessment (Earth Tech, 2002) 6. Yea Flood Study (Water Technology, 2005) 7. Merrigum Flood Study (WMB Oceanics Australia, 2005) 8. Mansfield Flood Study (Earth Tech, 2005) 9. Barmah-Millewa Forest Hydrodynamic Model Study (Water Technology, 2005) 10. Lower Goulburn Floodplain Rehabilitation Project Hydraulic Modelling Report (Water Technology, 2005) 11. Lower Goulburn Floodplain Study Geomorphology (SKM, 2006) 12. Lower Goulburn Floodplain Rehabilitation Scheme Addendum A Hydraulic Performance of the Engineered Option 2 (Water Technology, 2006) 13. Mansfield Flood Study Extension (Earth Tech, 2006) 14. Tatura Floodplain Management Study (WBM Oceanics Australia, 2006) 15. Violet Town Flood Study (Water Technology, 2007) 16. Lake Nillahcootie Flood Study (Cardno, 2008) 17. Tallarook Flood Investigation (Goulburn Broken CMA, 2008) 18. Barmah-Millewa Hydrodynamic Modelling Model Re-calibration (Water Technology, 2009) 19. Goulburn River Environmental Flows Hydraulics Study (Water Technology, 2010) 20. Murray River Regional Flood Study - Dicks/Seppelts levees to downstream of the Ulupna Creek confluence (Water Technology, 2011) 21. Rural Levee Assessment (Water Technology, 2013) 22. Flowerdale Flood Intelligence and Mapping Study (GBCMA, 2014) 23. Mansfield 1% AEP Flood Mapping Project (GBCMA, 2014) 24. Murchison Flood Mapping Study Report (Water Technology, 2014) 25. Eildon to Murchison Flood Modelling Project GPU Documentation (Water Technology, 2015) 26. Flood Assessment of Irrigation Infrastructure in the Goulburn Murray Irrigation District (Goulburn Broken & North Central CMAs, 2016). 27. Shepparton East Overland Flow Urban Flood Study (BMT WBM, 2017) 28. Design Flood Hydrographs for the (Upper) Goulburn and Broken River Catchments (Jacobs, 2017) 29. Nagambie Flood Study (BMT WBM, 2017) 30. Shepparton Mooroopna Flood Mapping and Intelligence Study (Water Technology, Ongoing)

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 115 31. Granite Creeks Regional Flood Mapping Study (WT, Ongoing) 32. Kilmore Flood Study (BMT WBM, Ongoing) 33. Flood Study of the Goulburn and Broken Rivers (Ongoing) 34. Whiteheads Creek Catchment Flood Mapping Project (Cardno, Ongoing) 35. Acheron River Flood Hydrology Study (Jacobs, Ongoing) 36. Sunday and Dry Creek Regional Flood Mapping Study (yet to be announced)

Table D-20: List of completed Floodplain Management plans

Floodplain Management Studies 1. Euroa Floodplain Management Study (1997) 2. Lower Goulburn Waterway and Floodplain Management Plan and Supporting Document (SKM, 1998) 3. Lower Goulburn Floodplain Rehabilitation Scheme Modified Findlay Scheme (SMEC, 1998) 4. Lower Goulburn Floodplain Rehabilitation Scheme Business Plan (Summary) (PcW, 1999) 5. Lower Goulburn Levee Audit Report Main Report and Appendices (1999) 6. Shepparton Floodplain Management Study (Stage 1 and 2) (SKM, 2002) 7. Benalla Floodplain Management Study (Cardno Willing, 2002) 8. Nathalia Floodplain Management Plan (SMEC, 2005) 9. Seymour Flood Mitigation Communication Investigation (WBM Oceanics Australia, 2006) 10. Assessment of Flood Risk to the Township of Barmah and Preliminary Flood Mitigation Review (Water Technology, 2008) 11. Benalla: Review of Floodplain Management Works (2009) 12. Violet Town Floodplain Management Scheme (Water Technology, 2012) 13. Yarrawonga Flood Management & Drainage Master Plan ( BMT WBM, 2013) 14. Euroa Post Flood Mapping and Intelligence Project (Cardno, 2015) 15. Numurkah Floodplain Management Study (Water Technology, 2017)

Table D-21: List of flood (mitigation implement actions

Flood (Mitigation) Implementation Actions 1. Murray River Levee Works Program Design and Construct Programs (1998-2002) 2. Euroa Water Management Scheme Technical Report (1999) 3. Euroa Water Management Scheme (FPM Plan) (2000) 4. Cobram urban levees upgrade (SKM, 2003) 5. Water Management Scheme Benalla Revision 1 – April 2003 6. Nathalia Floodplain Management Plan (Webb Consulting, 2005) 7. Benalla Water Management Scheme: Vegetation Management Plan (CT Management, 2006) 8. Shepparton Mooroopna Flood Warning and Emergency Management Project (Water Technology, 2007) 9. Flood Atlas (on website) (Goulburn Broken CMA, 2008) 10. Nathalia Mitigation Scheme Implementation (Moira Shire, 2009-2012) 11. Seymour Flood Mitigation Project – Preliminary Design Report (Webb Consulting, 2009) 12. Seymour Pre-Detailed Flood Mitigation (2010 Consultation Plan) 13. Euroa Mitigation Plan Implementation Castle Creek Levee (2011) 14. Barmah Township Flood Mitigation Functional Design (2012) 15. Violet Town Functional Mitigation Design (GMR Engineering, 2012 to date) 16. Tatura Floodplain Mitigation (Railway Culverts and floodway works - 2012) 17. Violet Town Levee Upgrade Report (GMR, 2016 to date)

116 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 18. Benalla Flood Information Portal Report (Cardno, 2016) 19. Seymour Levee Detailed Design (Mitchel Shire, 2016)

Table D-22: List of Local Flood Guides

Local Flood Guides 1. Katamatite 2. Nathalia 3. Numurkah 4. Muckatah Depression Fact Sheet 5. Tungamah 6. Congupna 7. Katandra West 8. Mooroopna Shepparton 9. Murchison 10. Tallygaroopna 11. Violet Town 12. Seymour 13. Yea 14. Jamieson 15. Benalla

Table D-23: List of 1% AEP flood level declarations

Declaration of 100-year flood levels (Water Act 1989)

Location Date of Declaration

Broken River – Benalla 19 July 2001

Euroa – Seven Creeks and Castle Creek 7 March 2002

Seymour – Goulburn River 22 August 2002

Shepparton - Mooroopna 22 August 2002

Tatura - Mosquito Depression 18 January 2007

Murray River – Lake Mulwala to Echuca (15 Sheets) 19 August 2004

Merrigum - Mosquito Depression 18 January 2007

Nathalia District – Broken Creek 18 January 2007

Yea – Yea River (Boundary Creek) 18 January 2007

Mansfield – Ford Creek 18 January 2007

Jamieson – Goulburn River 18 January 2007

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 117 Appendix E: 2002 Regional Strategy Program Review

Asset Management - Program 1 Table E-24: 2002 Regional Strategy Delivery – Asset Management (below) documents in detail the extent to which this program has been delivered. The Asset Management program has largely been addressed and remains ongoing in terms of operation and maintenance of urban levees. Consistent with the VFMS, operation and maintenance of urban levees is carried out by local government. Any maintenance works on ‘private’ levees that are located on Crown land fall under the new permitting system managed by the Goulburn Broken CMA (otherwise such works may be subject for permits under planning schemes). Other levees of significance are those currently being planned for Numurkah, Seymour and Violet Town. Table E-24: 2002 Regional Strategy Delivery – Asset Management

Ref Task Status at 2017 Asset Register AR1 Upgrade and Maintain Asset The Goulburn Broken CMA plays a support role, as required, and does Register by Goulburn Broken not hold or maintain any asset register in terms of mitigation CMA infrastructure such as town or rural levees. The construction authority is responsible maintaining an asset register, and particularly an operation and maintenance plan. Therefore, not relevant to CMAs. PWD Levees PWD1 Resolve legal liabilities Despite lobbying groups such as the Cobram and over the past two decades, no traction has ever been reached to have the PWD Resolve arrangements for PWD2 levees maintained. funding for O&M This is a statewide issue that has not been resolved and subject to PWD3 Prepare a management plan recent Parliamentary Inquiry into mitigation infrastructure review (Parliament of Victoria, 2012). PWD4 Maintain levees The Victorian Floodplain Management Strategy has now clarified roles and responsibilities, accountabilities, and policies that specifically address rural levees. Lower Goulburn Levees – includes part of Beattie Depression levees along the Murray LG1 Resolve legal liability issues The levees do not form part of any formal scheme that has an O&M authority, so the levees remain unmanaged. See comments in PWD Levees above in relation to the VFMS. LG2 Resolve arrangements for See LG4 below funding for O&M LG3 Formalise agreement with G-M Discussions with GMW confirm it only operates and maintains Loch Water over future Garry regulation and associated nine kilometres of levee around the arrangements for managing Loch Garry wetland. This is largely funded through rates from assets they currently maintain beneficiaries within the Deep Creek floodplain. No agreement is required as this is an obligation under the legislative transitional arrangements under the Water Act when GMW was established in 1994. LG4 Prepare a management plan A significant number of past studies and plans have been carried out as part of a project called the Lower Goulburn Floodplain Rehabilitation Scheme (2005). This was prepared following the 1993 floods, as a result of the State Government request to find a solution to managing the rural levees. The plan relied 100% capital funding from State and

118 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 Ref Task Status at 2017 Commonwealth with ongoing O&M provided by beneficiaries. It was never implemented. LG5 Maintain levees See LG4 above Beattie Depression Levees BD1 Maintain as required These levees form part of the irrigation drainage network arrangement where the Beattie Depression receives drainage water from the Deakin Main Drain and Mosquito Depression. The levees minimise flooding of low lying areas including backwater flooding from the Murray River (near Echuca) in times floods. GMW continue to manage the Beattie Depression and the associated levees Cobram Town Levees

CTL1 Prepare a management plan Completed by Moira Shire Council CTL2 Maintain the levees Carried out by Moira Shire Council Nathalia Town Levees NTL1 Prepare a management plan Completed by Moira Shire Council NTL2 Maintain the levees Completed by Moira Shire Council NTL3 Acquire easement rights for Preference to negotiate agreement rather using easements levees Private Strategic Rural Assets PSR1 Allow self-management either There has been virtually no request for assistance to maintain private individually or through levees or any other assets. community or advisory The flood overlay control captures most floodplain areas where new committees via a floodplain works require a permit. Under the new arrangements permits for management plan. maintenance works for levees on Crown land can be granted by the CMAs (since 2017), which was an action from the VFMS. Asset Management Review AMR1 Review/audit asset This is part of the O&M by the asset manager and is ongoing. There management plans every 5 have been two state-wide urban levee audits carried out years

Flood Studies and Floodplain Management Plans – Program 2 The 2002 regional Strategy adopted a systematic, risk management approach for the conduct of studies, as outlined in the Victoria Flood Management Strategy (1998). Community engagement, including community reference groups, are important steps and have been largely employed during the life of the studies. This allows for the sharing flood knowledge and the vetting of study outputs such as flood mapping, mitigation measures and recommendations. Table E-25 (below) documents the extent to which this program has been delivered.

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 119 Table E-25: 2002 Regional Strategy Delivery – Flood Studies and Floodplain Management Plans

Ref Task Status at 2017 Abbreviations  = Study/Plan Completed  = Study/Plan Mostly Completed USS = Urban Scoping Study UFMS = Urban Floodplain Management Study L = Low Priority RSS = Rural Scoping Study RFMS = Rural Floodplain Management Study M = Medium Priority UFS = Urban Flood Study UFMP = Urban Floodplain Management Plan H = High Priority RFS = Rural Flood Study RFMP = Rural Floodplain Management Plan Murray River Basin MU1 Barmah Urban Study Two studies have been completed. Assessment of Flood Risk to the  (UFMS) (L) Township of Barmah and Preliminary Flood Mitigation Review (Water Technology, 2008) and Barmah Township Flood Mitigation Functional Design (Water Technology, 2012). Outcome is the cost of mitigation infrastructure greatly outweigh the benefits and therefore unlikely to proceed. MU2 Yarrawonga Urban Study Yarrawonga Flood Management & Drainage Master Plan (BMT WBM,  (UFS) (M) 2013). This study was carried out to inform Moira Shire on future drainage management and at the same time produce 1% AEP overland flood mapping. MR1-1 Murray River: Dick’s Levee to The Murray River Regional Flood Study - Dicks/Seppelts levees to  Piree Creek Stage 1 downstream of the Ulupna Creek confluence (Water Technology, 2011) (RSS) (H) was a departure from the three-staged approach as set by the 2002 regional Strategy. MR1-2 Murray River: Dick’s Levee to This is an example of a partnership approach. New technology (LiDAR)  Piree Creek Stage 2 became available and both NSW and Victoria formed a partnership to (RFS) (H) look at an important reach of Murray River from Cobram East to downstream of Ulupna Creek and Murray River confluence. This study MR1-3 Murray River: Dick’s Levee to investigated the performance on urban flood mitigation schemes at Piree Creek Stage 3  Cobram and (NSW) and was used to seek further mitigation (RFMP) (H) works. It also covered the more populated areas including Koonoomoo and Strathmerton. Flood intelligence has been updated to the MFEP. It was not possible to extend this study to Piree Creek as budget did not allow for additional LiDAR Capture. The completed study did address most of the three stages, but did not consider future arrangements around the PWD levees maintenance. See earlier comments in the Asset Management Program 1. MR2-1 Murray River: Piree Creek to This was considered a low priority, which indicates no further action. Barmah Stage 1 (RSS) (L) MR2-2 Murray River: Piree Creek to This was considered a low priority, which indicates no further action. Barmah Stage 2 (RFMP) (L) Goulburn River Basin GU1 Avenel Urban Study This was considered a low priority, which indicates no further action.  (UFS) (L) However, this town sits inside an ongoing Granite Creek Flood Mapping Study and not only maps Hughes Creek but the northern tributary waterways through the north of Town. GU2 Buxton Urban Study This was considered a low priority. Following major floods in recent years (UFS) (L) the priority to fully understand the nature of flooding is high. This forms part of the ongoing Acheron River Flood Hydrology Study (Jacobs, Ongoing) and a flood study is currently being prepared by Goulburn Broken CMA.

120 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 Ref Task Status at 2017 Abbreviations  = Study/Plan Completed  = Study/Plan Mostly Completed USS = Urban Scoping Study UFMS = Urban Floodplain Management Study L = Low Priority RSS = Rural Scoping Study RFMS = Rural Floodplain Management Study M = Medium Priority UFS = Urban Flood Study UFMP = Urban Floodplain Management Plan H = High Priority RFS = Rural Flood Study RFMP = Rural Floodplain Management Plan GU3 Jamieson Urban Study The Jamieson Flood Scoping Study (SKM, 2003) has been utilised and  (USS) (M) incorporated into Mansfield Planning Scheme and Flood Intelligence for MFEP. GU4 Kilmore Urban Study The Kilmore Flood Study (BMT WBM) is well advanced. (UFS) (M) GU5 Mansfield Urban Study Mansfield Flood Study (Earth Tech, 2005), Mansfield Flood Study  (UFS) (M) Extension (Earth Tech, 2006) and Mansfield 1% AEP Flood Mapping Project (GBCMA, 2014) have been utilised and incorporated into Mansfield Planning Scheme and Flood Intelligence for MFEP. GU6 Merrigum Urban Study Merrigum Flood Study (WMB Oceanics Australia, 2005) has been  (UFS) (M-H) completed and utilised and incorporated into Mansfield Planning Scheme and Flood Intelligence for MFEP. GU7 Molesworth Urban Study This was considered a low priority, which indicates no further action. (UFS) (L) However, broad regional flood mapping work carried out under the Eildon to Murchison Flood Modelling Project GPU Documentation (Water Technology, 2015). GU8 Murchison Urban Study Murchison Flood Mapping Study Report (Water Technology, 2014) has  (UFS) (L) been completed and utilised and incorporated into Mansfield Planning Scheme and Flood Intelligence for MFEP. GU9 Nagambie Urban Study Nagambie Flood Study (BMT WBM, 2017) just recently completed.  (UFS) (M) Information need to be translated into actions. GU10 Rushworth Urban Study This was considered a low priority, which indicates no further action. (UFS) (L) Campaspe Shire has carried out drainage improvements in recent years GU11 Seymour Urban Study Seymour Floodplain Mapping Study (WBM Oceanics Australia, 2001),  (UFMP) (H) Seymour Flood Mitigation Communication Investigation (WBM Oceanics Australia, 2006), Seymour Flood Mitigation Project – Preliminary Design Report (Webb Consulting, 2009), have been completed and Seymour Levee Detailed Design (Mitchel Shire, 2016) is underway. GU12 Stanhope Urban Study This was considered a low priority, which indicates no further action. A (USS) (L) depression exist south of town and no known flood issues are known with the township of Stanhope. GU13 Tallarook Urban Study Tallarook Flood Investigation (Goulburn Broken CMA, 2008) completed  (UFS) (L) but flood mapping not incorporated into Mitchell Planning Scheme. The investigation concludes that the bulk of building are well above the 1% AEP flood extent. GU14 Tatura Urban Study Tatura Floodplain Management Study (WBM Oceanics Australia, 2006)  (UFMP) (H) and Tatura Floodplain Mitigation (Railway Culverts and floodway works - 2012) are completed GU15 Thornton Urban Study Broad regional flood mapping work carried out under the Eildon to (USS) (M-H) Murchison Flood Modelling Project GPU Documentation (Water Technology, 2015). No study on Thornton carried out. GU16 Toolamba Urban Study This was considered a low priority, which indicates no further action. (UFMS) (L)

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 121 Ref Task Status at 2017 Abbreviations  = Study/Plan Completed  = Study/Plan Mostly Completed USS = Urban Scoping Study UFMS = Urban Floodplain Management Study L = Low Priority RSS = Rural Scoping Study RFMS = Rural Floodplain Management Study M = Medium Priority UFS = Urban Flood Study UFMP = Urban Floodplain Management Plan H = High Priority RFS = Rural Flood Study RFMP = Rural Floodplain Management Plan GU17-1 Violet Town Study - Stage 1 Violet Town Flood Scoping Study (GHD, 2002) completed, revised flood  (USS) (H) overlay should be incorporated into planning scheme. GU17-2 Violet Town Study - Stage 2 Both the Violet Town Flood Study (Water Technology, 2007), and the  (UFMP) (H) Violet Town Flood Study (Water Technology, 2007) are completed. Detailed design now underway by Strathbogie Shire Council. GU18 Yea Urban Study Yea Flood Study (Water Technology, 2005) and has been completed and  (UFS) (M-H) utilised and incorporated into Mansfield Planning Scheme and Flood Intelligence for MFEP. GR1-1 Goulburn River: Eildon to This was considered a low priority, which indicates no further action.  Seymour Stage 1 However, broad regional flood mapping work carried out under the (RSS) (L) Eildon to Murchison Flood Modelling Project GPU Documentation (Water Technology, 2015). GR1-2 Goulburn River: Eildon to This was considered a low priority, which indicates no further action. Seymour Stage 2 (RFMS) (L) GR2-1 Goulburn River: Seymour to This was considered a low priority, which indicates no further action.  Shepparton Stage 1 However, broad regional flood mapping work carried out under the (RSS) (L) Eildon to Murchison Flood Modelling Project GPU Documentation (Water Technology, 2015). GR2-2 Goulburn River: Seymour to This was considered a low priority, which indicates no further action. Shepparton Stage 2 (RFMS) (L) GR3-1 Goulburn River: Shepparton These stages have been completed through the completion of: Lower  to Murray River – Stage 1 Goulburn Waterway and Floodplain Management Plan and Supporting (RFS) (VH) Document (SKM, 1998), Lower Goulburn Floodplain Rehabilitation Scheme Modified Findlay Scheme (SMEC, 1998), Lower Goulburn GR3-2 Goulburn River: Shepparton Floodplain Rehabilitation Scheme Business Plan (Summary) (PcW, 1999),  to Murray River – Stage 2 Lower Goulburn Levee Audit Report Main Report and Appendices (1999), (RFS) (VH) Lower Goulburn Rehabilitation Project Socio-economic Issues Assessment (Earth Tech, 2002), and Lower Goulburn Floodplain Rehabilitation Project Hydraulic Modelling Report (WT, 2005), Lower Goulburn Floodplain Study Geomorphology (SKM, 2006), Lower Goulburn Floodplain Rehabilitation Scheme Addendum A Hydraulic Performance of the Engineered Option 2 (WT, 2006). The scheme was ultimately abandoned as not agreement could be reached on funding arrangement for 100% of capital works from the State and Commonwealth governments with O&M being proposed from beneficiaries. GR4 Castle & Seven Creeks Now underway as part of the Granite Greeks project (Water Technology)  downstream of Euroa which is an extensive regional flood mapping study to provide good (RFS) (M-H) indicative intelligence for emergency management and land-use planning. The study extends over many catchments from Avenel (Hughes Creek) to Baddaginnie (Folly Creek).

122 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 Ref Task Status at 2017 Abbreviations  = Study/Plan Completed  = Study/Plan Mostly Completed USS = Urban Scoping Study UFMS = Urban Floodplain Management Study L = Low Priority RSS = Rural Scoping Study RFMS = Rural Floodplain Management Study M = Medium Priority UFS = Urban Flood Study UFMP = Urban Floodplain Management Plan H = High Priority RFS = Rural Flood Study RFMP = Rural Floodplain Management Plan GR5 Corop Lakes The Corop Lakes Flood Scoping Study (GHD, 2012) has provided a  (RFS) (L-M) recommendation around GMW operations to be shared with the Community. It study found the current flood overlay controls within the

Campaspe Planning Scheme are mostly sound. Some minor inclusion could be carried out at Colbinabbin Primary School site but is of low priority. GR6 King Parrot & Strath Creeks This was considered a low priority, which indicates no further action.  (RFS) (L) However, the Flowerdale Flood Study Flood Intelligence and Mapping Project (GBCMA, 2014) covered some of the area. The study mapped some 20 kilometres of King Parrot Creek, including Hazeldene, Flowerdale and several other areas. . GR7 Murrindindi Creek and Yea This was considered a low priority, which indicates no further action. River (RFS) (L) GR8 Sunday and Dry Creeks, This was considered a low priority, which indicates no further action. including Broadford However, these areas are now considered a high priority given the peri- (RFS) (L) urban demands for growth due close nature to . A proposed for this study is ready to start pending commitment under the Natural Disaster Funding Program. Broken River Basin BR1 Broken River: Benalla to Not yet carried out. Some Internal GBCMA work was carried out as part  Shepparton of Greater Shepparton Planning Amendment (in field intelligence with (RFS) (M) community) and further work using LiDAR and 1% historical flood surface to update flood mapping for Benalla Rural City Planning Scheme Amendment. The area now has a very high priority. Broken Creek Basin BCU1 Katamatite Not yet carried out. (USS) (L-M) BCU2 Numurkah A flood study was underway prior to the significant flood of 2012. This (UFMP) (H) was abandoned in favour of carrying out the Numurkah Floodplain Management Study (Water Technology, 2017) that has explored large  array of mitigation options. The preferred options are to be presented for community input as the time of writing this Strategy. A preferred mitigation scheme will be considered by Moira Shire Council for adoption. BCU3 Nathalia The Nathalia Floodplain Management Plan (SMEC, 2005) and Nathalia (UFMP) (VH) Flood Mitigation Scheme Implemented (Moira Shire, 2009-2012). The upgraded levee system was tested by the highest flood of record (2012),  and included the flood warning prediction services was also completed and used during 2012 flood. BCU4 Tungamah Not yet carried out. LiDAR has been commissioned (2017) for this (UFMP) (H) catchment to allow the study to proceed in near future. BCU5 No scoping study carried out. However, flood mapping has been  (USS) (L) completed as part of the extended Numurkah Floodplain Management Study, which will adequate for scoping purposes.

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 123 Ref Task Status at 2017 Abbreviations  = Study/Plan Completed  = Study/Plan Mostly Completed USS = Urban Scoping Study UFMS = Urban Floodplain Management Study L = Low Priority RSS = Rural Scoping Study RFMS = Rural Floodplain Management Study M = Medium Priority UFS = Urban Flood Study UFMP = Urban Floodplain Management Plan H = High Priority RFS = Rural Flood Study RFMP = Rural Floodplain Management Plan BCR1 Pine Lodge, Daintons, This was considered a low priority, which indicates no further action. Congupna and O’Keefe Creeks (RFS) (L) BCR2-1 Nine Mile, Boosey, Muckatah Not yet carried out. Creeks. – Stage 1 (RFS) (L-M) BCR2-2 Nine Mile, Boosey, Muckatah Not yet carried out. (RFMS) Creeks. – Stage 2 (L-M)

Table E-26: 2002 Regional Strategy Delivery - Floodplain Work Delivery

Ref Task 2017 Status Water Management Schemes – Urban Areas FPW1 Benalla Waterway Management Scheme completed, which was largely about removal of selected vegetation. Continued operation and maintenance is carried out by Benalla Rural City Council. Total Flood Warning System implemented separately in the mid-2000s. FPW2 Euroa Water Management Scheme completed which was largely about augmentation of Castle Creel and removal of selected vegetation along creek corridors. Continued operation and maintenance is carried out by Shire of Euroa. Total Flood Warning System implemented separately in the mid-2000s. FPW3 Shepparton Shepparton Mooroopna Flood Warning and Emergency Management Project was delivered as the recommended scheme. Structural mitigation measures were dismissed following community consultation. FPWU Implement works for future Additional work included: Cobram levee augmentation, Tatura railway urban studies and FPM Plans culverts and floodway works, Nathalia levee augmentation and TFWS, and detailed design of levees for Seymour and Violet Town. Rural Areas FPW4 Upgrade PWD (Murray River) The Department funded repairs of known levee defects, based on the levees Levee Audit (Coffey, 1997), primary from Cobram to Koonoomoo. See Table E-25. FPW5 Lower Goulburn Floodplain See Table E-25 for further background. No works are currently planned Rehabilitation Scheme FPWR Implement works from future No works are currently planned. rural studies and FPM plans

In conclusion, this program delivery has been successful because of strong stakeholder partnership and financial commitment by all levels of government.

124 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 Statutory Land Use Planning – Program 3 At the outset of the development of the 2002 regional Strategy, the statutory land-use planning program was considered one of the most important of all programs because of the need to ensure that land-use and development proposals do not unduly add to legacy flood problems.

At the time of the formations of CMAs across Victoria, the new format planning schemes were being prepared using the standard set of zones and overlay contained in the Victoria Planning Provisions. The 2002 regional Strategy was conscious to utilise the new tools that were specifically made available for floodplain management to management the “future” flood problem (not making things worse).

The tools in the Victoria Planning Provisions, for floodplain management have not (for the most part) changed since its introduction in the mid-1990s, and include using: • Urban Floodway Zone (UFZ), (Rural) Floodway Overlay (RFO or FO), Land Subject to Inundation Overlay (LSIO) and Special Building Overlay (SBO). • Schedules to the FO, LSIO, and SBO that specifically allow for exemptions for unnecessary planning permit referrals. • Local Floodplain Development Plans that provides a performance-based risk management criteria for those most common types of applications. • Local Planning Policy Framework to sign post local issues relevant to LGAs and other prepared incorporated documents such as the Local Floodplain Development Plans. All LGAs have zone and overlay controls within their planning schemes. Five of the eight LGAs have included the full suite of zone and overlay controls, schedules, local floodplain development plans and local planning policy.

Table E-25 and Table E-28 present the status of this program. Note that updating planning controls is never static and should always incorporate the best available information. Considerable effort is required under this Strategy to carry out a significant number of planning schemes amendments.

Table E-27 2002 Regional Strategy Delivery – Implementation program for statutory planning

Ref Task Status at 2017 SP1 Draft VPP amendments. Completed and include the full suite of VPPs tool for floodplain Shires of Murrindindi & management. Mitchell only SP2 Incorporate FDT maps into Completed for all LGAs except Benalla Rural City Council where maps planning schemes need updating beyond the FDT (Flood Data Transfer Project from Victoria to Shires and CMAs). SP3 Improved flood maps. These On-going following completion of flood mapping studies. are only where required. SP4 Incorporate improved flood Many updates from Studies incorporated and many have not and subject maps into planning schemes to priorities for the 2017 regional Strategy. SP5 Review performance of Standard set of conditions has been established in a GIS Planning planning measures every 5 Database Platform known as IPAWs, which all CMAs are using across the years. Audit a representative State. selection of statutory No audits have been carried out except on processes and time planning responses across all performance in the Goulburn Broken CMA internal Audit in 2013. municipalities and check for

consistency in conditions.

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 125 Ref Task Status at 2017 Audit a smaller selection of Never carried out by Goulburn Broken CMA. Some audits carried out by developments across all LGAs municipality and test compliance of approved works against conditions of permit. SP6 Inform VicRoads, V-Line, This is achieved by the planning scheme requirements and deemed Goulburn-Murray Water & unnecessary. Power Authorities of recommended referral and consultation arrangements when appropriate

Table E-28: 2002 Regional Strategy Delivery – Flood mapping

Task/(Priority) 2017 Status Murray Catchment Murray/Ovens River confluence near Completed as part of Murray River Mapping for MDBA. Bundalong (Low Priority) Goulburn River tributaries between Eildon About 20% complete and some incorporated into planning scheme. and Seymour (e.g. Rubicon River, Acheron Low priority given due to other higher priorities River, Home Creek, Dabyminga Creek, Yea River, Murrindindi Creek, King Parrot Creek, Strath Creek) (Low Priority) Goulburn River tributaries between The current Granite Creek Flood Mapping Project will address most of Seymour and Shepparton (e.g. Major Creek, the named tributaries Sugarloaf Creek, Mollison Creek, Gardiner Creek, Hughes Creek, Castle Creek, Seven Creeks, Pranjip Creek, Honeysuckle Creek, Stony Creek) (Medium Priority) Toolamba/Stanhope area generally north of The Corop Lake Scoping Study (GHD, 2012) indicates that the overlay Waranga Basin covering the numerous controls are sound following a review of capture 2010 LiDAR drainage lines and depressions through this information. No further detailed modelling is not warranted for this area (update of 1950 flood extent Strategy. information required) Cornella Creek, Wanalta Creek and Corop The Corop Lake Scoping Study (GHD, 2012) indicates that the overlay Lakes controls are sound following a review of capture 2010 LiDAR information. No further detailed modelling is not warranted for this Strategy. Broken River Catchment Broken River and Holland Creek upstream Flood Data Transfer Flood Mapping available but considered poor. of Benalla (cleared areas only) LiDAR will assist in improving flood planning. Baddaginnie Creek Currently part of the Granite Creeks Flood Mapping Project Broken River effluents between Benalla and Preliminary work completed. Lake Mokoan and Stockyard Creek. Broken Creek Catchment

126 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 Task/(Priority) 2017 Status Upper reaches of Broken and Boosey This work has not been addressed. The first task is to study the Creeks, including effluent flow paths from hydrology and model the nature of flooding along the Broken River and Broken River between Broken Creek and its effluents into the Broken Creek catchment. This work in eminent Nalinga, and also near the Dookie Hills and part of the Goulburn and Broken Flood Mapping Project. The upper reaches of the Boosey and Broken then be ready to be investigated as part of the Upper Broken Study Flood Mapping Study into the future. This is required as there are little overlay controls Muckatah Depression and nearby Overlay exist in the planning scheme. However, improved depressions and areas of low lying land understanding is required Natural depressions between Broken Creek Need to include significant drainage line mapping into planning scheme and the Murray River, north of Numurkah as Floodway Overlay (FO) controls. and Nathalia, including Drain 13 area near Nathalia Broken Creek, downstream of Nathalia.

Development Assessment Guidelines – Program 4 The guidelines are intended to link with Program 3 – Statutory Planning. The aim is to ensure that land-use and development assessments are consistent.

The major achievement is the incorporation of Local Planning Policy, Local Floodplain Development Plans and schedules to the flood provision in five of the eight planning schemes within the Goulburn Broken CMA, which form the bulk of the decision guidelines. It of note that incorporating decision guidelines into planning scheme provides transparency for all stakeholders.

The 2013 Internal Audit (Partners, 2013) recommended that the decision guidelines and processes be formally structured into the Goulburn Broken CMA Policy and Procedures to ensure all staff are aware of how to make decisions.

A review of the 2002 regional Strategy indicates that the guidelines align with the: • State Planning Policy Framework • Local Floodplain Development Plans • Planning Practice Note 11 (Department of Environment, Land, Water and Planning, 2015) • Urban Floodway Zone (Clause 37.03) • Floodway Overlay (Clause 44.03) • Land Subject to Inundation (Clause 44.04) • Goulburn Broken CMA Policies and Procedures Currently, Department of Environment, Land, Water and Planning are coordinating Development Guidelines on Flood Prone Land in conjunction with all CMAs and Melbourne Water.

Control of Works and Activities – Program 5 This program looked at seven possible ways to managed works and activities and seeks to identify and document procedures, particularly under the Victoria Planning Provisions (planning schemes),

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 127 Water Act declarations and By-laws. The latter is limited to the confines of waterways rather than floodplain areas. Declarations could however be applied to floodplain areas.

No action has been carried out for this program in this matter in preference of the planning controls in planning schemes.

The Goulburn Broken CMA has provided significant resources to support LGAs resolve “illegal” works. There are however, no formal documented arrangements in place.

Further discussion around this program is provided in the Strategy in Section 4.6.

Emergency Response Planning – Program 6 A large portion of this program has been delivered by LGAs and VICSES with support from the Goulburn Broken CMA. This program is heavily reliant on the availability of good flood data. Many flood studies include components where emergency and flood warning considerations are examined. Table E-29 provides a description of completed tasks that mostly been advanced. The proposed elements of the TFWS for each basin and priorities are discussed in Section 2.4. Only two Charters (which were agreements on how flood warning arrangements were to be delivered) exist - for Nathalia and Shepparton. There has been a significant number of flood warning prediction services implemented however, namely: • Benalla (Benalla Rural City Council); • Euroa (Strathbogie Shire); • Seymour (and mid Goulburn Mitchell and Murrindindi Shires); • Shepparton Mooroopna (Greater Shepparton); • Lower Goulburn – Loch Garry Scheme (Goulburn Murray Water); • Nathalia (Moira Shire); • Numurkah (in development); and • NSW provide forecasts for the Murray River at the Yarrawonga and Tocumwal gauges. Service Level Specification for Flood Forecasting and Warning Services for Victoria are documented by the BoM (Bureau of Meteorology, 2013)

Table E-29: 2002 Regional Strategy Delivery – Emergency response planning

Task/(Priority) 2017 Status Identify Flood Warning System Needs. • Develop flood warning service charter Not attempted. Currently, VICSES implementing catchment footprint (for each Basin with LGAs and VICSES) EMCOP warning distribution. • Establish prioritised program based on This has been considered in Program 2: Flood Studies and Floodplain needs Management Plans • Advise BoM of requirements This has been carried out as part of study recommendations • Review & update service charter as Not attempted required

128 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 Task/(Priority) 2017 Status • Identify funding opportunities Data Network Management • Developed Policy for CMA This is done through the establishment of the Northern Regional Water involvement in flood network Monitoring Partnership. The CMA has some role in water quality management monitoring • Facilitate the development and This is done through the establishment of the Northern Regional Water implementation of a regional Monitoring Partnership, which is coordinated by the Department of monitoring partnership (in Environment, Land, Water and Planning. consultation with NRE).

Empower Community. Explore opportunities for public This has been delivered through EMCOP where it value adds to BoM’s dissemination of BoM “Flood Advice” flood warnings warning/information Develop Community Flood Response Four flood guides were prepared as part of TFWs for Seymour, Guides (Consultancy) Shepparton, Benalla and Euroa prior to the FloodSafe initiative led by VICSES. A list of 15 guides are shown in Appendix D: Summary of Flood Studies, Plans, Work Plans Help raise and maintain community The initiate in led by VICSES with support from LGAs and CMA. Note awareness by contributing to media improved websites now available. articles, preparing brochures, speaking to community groups, etc. Review and document actions undertaken This initiative is carried out by LGAs with review by VICSES and CMAs. by municipalities with improved flood The new Municipal Flood Emergency Plan standard template has most warning systems to ensure all elements of been applied across Victoria, which has led to greater ease of use. the flood warning system are ready for future flood events. Resolve Anomalies in Roles and Responsibilities. Work with G-M Water and BoM to resolve Completed. This service is now solely carried out by BoM. anomalies in existing roles and responsibilities for flood forecasting and warning activities.

Flood Monitoring Action – Program 7 The implementation of this program has been significantly advanced. Five initiatives were completed, namely: • State-wide Flood Response Action Plan template (Coordinated by Goulburn Broken CMA); • Data needs for each of the four catchments in the Goulburn Broken region; • Goulburn Broken CMA Flood Response Plan; • Policy and Practice Procedures (internal); and • GIS Platform The GIS platform is a consolidation of the first three bullet points above, which provides rapid access to the actions that the Goulburn Broken CMA is required to perform in terms of flood data capture including: peak flood levels, aerial flood photography, and hydrographic flow measurements. At the same time, the Goulburn Broken CMA performs its role in the Intelligence Cell at the Incident Control Centres, assist VICSES in managing potential flood consequences.

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 129 A State-wide initiative known as FloodZoom, which is a web based platform of key flood intelligence products has been advanced over the past five years by DELWP in conjunction with CMAs and VICSES. This platform provides flood intelligence that is accessible by emergency management personnel. The Goulburn Broken CMA role during recent major floods has been tested during 2010, 2011, 2012 and 2016. Debrief sessions have been carried out to improve procedures following each flood, particularly the Goulburn Broken CMA Internal Policy and Practice Procedures. The Goulburn Broken CMA seeks to test its action plan and/or attend state-wide or regional incident control centre exercises coordinated by DELWP/VICSES since the recent floods, and in most part worked effectively. The Strategy seeks to re-evaluate the data needs for flood data capture. Review of the performance of levee systems also needs to be addressed.

Information Management Systems – Program 8 This program is focused on the Goulburn Broken CMA internal processes that were of utmost priority to ensure effective and efficient functioning of the statutory planning and floodplain management program. The Goulburn Broken CMA Information Communication Technology (ICT) team has provided significant support in addressing the requirements of this program. The IPAWS (Integrated Planning and Works System for statutory referrals, advices and permits) system and the Flood Response Action Plan GIS Platforms have been significantly affective in this program where significant resources have been employed. The Goulburn Broken CMA in fact led to the development of the Platform and its delivery to all CMAs. Other activities include file management of both plans and documents (linkages via GIS), remote applications (to enable to use the CMA’s corporate computer platforms away from the office), hydrology and hydraulic software, and a floodplain library. This program included the future needs for flood data that is mostly covered in the flood action plan, but should be reviewed and joined to Program 7. This program has been successfully implemented. However, ICT seeks to remain current and requires ongoing management.

Education, Promotion and Communication – Program 9 This program suggests a range of training programs, which are ongoing and mostly well attended. Professional development of staff has also been coordinated by the Goulburn Broken CMA’s Human Resources Team including conflict management, taking evidence, interview techniques, etc. The program set out community workshops to be carried out twice a year to raise flood awareness, which has been led by VICSES through the FloodSafe program.

130 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 Appendix F: Service levels – structural flood mitigation works

Table F-30: Service levels (urban centres) – Structure flood mitigation works

Name Existing Flood Mitigation Infrastructure (levees) Proposed Flood Mitigation Infrastructure (Levees)

Benalla Rural City Council Baddaginnie • None identified and not required • Benalla Description No other flood infrastructure • The Approved Water Management Scheme (2003) proposed. Review should be was implemented (circa 2006-08) comprising carried out following the next vegetation thinning (largely exotics) and major flood greater than 2% AEP management. The works extends from through the flood. City. Banks associated with the old • Also, TFFS in place. Mokoan Channel should be reviewed if they provide a service Management Authority in protecting parts of Benalla – • Benalla Rural City Council maintains the Scheme and refer to contributes to the maintenance of the rain and Table F-32 at the end of this stream gauge network for the TFWS Appendix.

Devenish None identified and not required • Lima South • None identified and not required •

Glenrowan • None identified and not required • (Rural ) Swanpool • None identified and not required Tatong None identified and not required Thoona None identified and not required • Campaspe Shire Colbinabbin None identified and not required • Girgarre None identified and not required • Kyabram Description • • A pumping scheme and a retention basins have been implementation to reduce stormwater flooding. This is detailed in a report prepared by GHD (1995). Management Authority Shire of Campaspe Rushworth Description • • Northern, southern and western catchment stormwater plans were implemented in 2014 to reduce exposure of overland stormwater inundation. Management Authority Shire of Campaspe

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 131 Name Existing Flood Mitigation Infrastructure (levees) Proposed Flood Mitigation Infrastructure (Levees)

Stanhope Description • • Stanhope drainage scheme implemented in the mid- 1970s to reduce exposure of overland stormwater inundation. Management Authority Shire of Campaspe Tongala Description • - • A drainage scheme, including retardation basins was implemented in the mid-1980s 2014 to reduce exposure of overland stormwater inundation. Management Authority Shire of Campaspe Wyuna None identified and not required • Greater Bendigo City Council Costerfield None identified and not required • - Costerfield None identified and not required • - South Heathcote None identified and not required • - East (Rural Living) Heathcote None identified and not required • - North (Rural Living) Mount Camel None identified and not required • - Redcastle None identified and not required • - Greater Shepparton City Council Bunbartha Description • There is no proposal to have the lower Goulburn levees • The unmanaged rural levees, which forms part of managed into the future. the lower Goulburn levee system protects Bunbartha from flooding up to 2% AEP type flood. However, this cannot be relied upon as there are no operation of maintenance arrangements in place. Management Authority Nil Cooma None identified and not required • - East None identified and not required • - Murchison East None identified and not required. However, overland • Possible local drainage Shepparton stormwater flooding may be further scoped as part of solutions Greater Shepparton drainage review, which is currently underway. Katandra None identified and not required until a scoping • - West stormwater study is carried out. Kialla West None identified and not required • - Merrigum None identified and not required • -

132 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 Name Existing Flood Mitigation Infrastructure (levees) Proposed Flood Mitigation Infrastructure (Levees)

Murchison Description • The levee and associated infrastructure (i.e. penstocks • North of the Murchison-Bendigo Bridge crossing a or values if they exist) need to levee has been constructed along the eastern bank be formally maintained in the of the Goulburn River, which is approximately one- future by Greater Shepparton metre in height City Council. A levee audit • This levee in some 200 metres in length and is would provide information on thought to have been constructed following the the quality of the levee. 1916 flood where floodwaters entered into the town • Consideration to construct a impacted on retail and residential areas. permanent short levee Management Authority upstream of town to prevent backdoor flooding should be • Nil given rather than the option Levee condition and level of protection of relying on sandbagging • Despite no formal management arrangement, the efforts – refer to the levee in visually in very good condition and well Murchison Flood Mapping grassed and mowed. Study (WT, 2014). • Based on the Murchison Flood Study (WT, 2014) the height of the levee (determined from new survey information) is more than 610 mm above the 1% AEP flood level. Shepparton/ PRINCESS PARK LEVEE (Shepparton) • A decision will need to be Mooroopna Description made if the benefits of the

• Approximately 1100 metres in length and around levee outweigh the long-term (Part 1 of 4) 2-3 metres in height. This levee protects two maintenance cost, particularly sporting ovals, club rooms and recreation buildings. given the low level of Management Authority protection provided. • Greater Shepparton could • Nil commission an economic Levee condition and level of protection evaluation of the levee prior to deciding on taking on any • Despite no formal management arrangements, the formal management levee is visually in very good condition and well arrangements grassed with its crest sealed forming part of the • Refer to Murchison for further bicycle path network. The crest and levee batters actions if management is likely meet contemporary standards. to proceed. • The levee will begin to overtop at a peaked of 11.66 metres on the Shepparton gauge. Without freeboard, the level of protection is 5 cm below the 1993 flood, or level of protection of around 4% AEP (25-year ARI). Note the 1993 flood photograph take 0.01 m of the peak show little inundation. Assuming that 600 millimetre freeboard is required to determine the level of service, then it reduces to equivalent to the September 2010 flood or 14% AEP (7-year ARI) type flood.

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 133 Name Existing Flood Mitigation Infrastructure (levees) Proposed Flood Mitigation Infrastructure (Levees)

Shepparton/ MACGUIRE RESERVE (Shepparton) Levee • A decision will need to be Mooroopna Description made if the benefits of the

• Approximately 900 metres in length and around levee outweigh the t long- (Part 2 of 4) 2-3 metres in height this levee protects term maintenance cost, Shepparton’s Lawn Tennis Courts, and open Crown particularly given the low level land partly used for car parking. of protection provided. Management Authority • Greater Shepparton could commission an economic • Nil evaluation of the levee prior Levee condition and level of protection to deciding on taking on any formal management • Despite no formal management arrangements, the arrangements levee is visually in fair good condition and grassed • Refer to Murchison for further with its crest sealed forming part of the bicycle path actions if management is likely network. The levee batters are relatively steep to proceed. compared with contemporary standards. During the September 2010 flood, the levee marginally overtopped (stopped by sandbagging) and floodwater piped through the levee flooding parts of the tennis courts near Goulburn Valley Water's treatment plant. • The levee will begin to overtop south of Daintons Bridge at 10.98 metres on the Shepparton Gauge. Without freeboard, the level of protection is around 17% AEP (or 6-year ARI). Assuming that 600 millimetre freeboard is required to determine the level of service, then it reduces 10.4 metres on the Shepparton Gauge that equates to around the 25% AEP (<4-year ARI) type flood. Shepparton/ Balmoral Estate Levee (Kialla) • Given that the level of service protects several rear yards, Mooroopna Description there is no merit in formally

• Approximately 300 metres in length and around maintaining this level. In fact, (Part 3 of 4) 300 millimetres in height this levee protects a Greater Shepparton should number of rear backyards (west and of Furphy limit any further modification Avenue) from nuisance flooding. The floor levels are to the levee in terms of its well above the height of the levee. height and length. Management Authority • Nil Levee condition and level of protection • Visually, the levee is low and narrow and of ad hoc construction. • During the September 2010 flood (11.09 metres on the Shepparton Gauge), the levee was eminent of overtopping. • The levee will begin to overtop at 11.10 metres on the Shepparton Gauge. Without freeboard, the level of protection is around 17% AEP (or 6-year ARI). Assuming that 600 millimetre freeboard is required to determine the level of service, then it reduces 10.4 metres on the Shepparton Gauge that equates to around the 25% AEP (<4-year ARI) type flood.

134 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 Name Existing Flood Mitigation Infrastructure (levees) Proposed Flood Mitigation Infrastructure (Levees)

Shepparton/ VICTORIA PARK LEVEE (Shepparton) • The levee only provides Mooroopna Description protection from nuisance type

• Approximately 430 metres in length and around flooding. The camping ground (Part 4 of 4) 600-800 millimetres in height this levee protects should rely on evacuation camping grounds associated with Victoria Lake procedures as part of the Caravan Park. Park’s operation. Management Authority • Refer to Murchison for further actions if management is likely • Nil to proceed. Levee condition and level of protection • Visually, the levee is in poor to fair condition with varying crest widths and varying levee batters, and partially grassed with the presence of some trees. • During the September 2010 flood, the levee marginally overtopped (stopped by sandbagging) and floodwater piped through the levee flooding parts of the tennis courts near Goulburn Valley Water's treatment plant. • The levee will begin to overtop at 11.18 metres on the Shepparton Gauge. The September 2010 flood photography indicates that the camping grounds were protected. • Without freeboard, the level of protection is around 14% AEP (or 7-year ARI). Assuming that 600 millimetre freeboard is required to determine the level of service, then it reduces 10.58 metres on the Shepparton Gauge that equates to around 25% AEP (<4-year ARI) type flood. (East, North Non-backbone Irrigation Removal along Wanganui Road • Greater Shepparton City and Orrvale) Shepparton North, Shepparton East and Orrvale Council will need to ensure Shepparton that flooding is not transferred to the urban areas Greater Shepparton City Council to consider bringing the channels into a Water Management Scheme – refer to detailed • Table F-32 at the end of Appendix

Tallygaroopn None identified • Mitigation measures could be a explored as part of the floodplain management plan for Tallygaroopna as large parts are significantly impacted by flooding

Tatura None identified and not required • - Toolamba None identified and not required • - Mansfield Shire Council Bonnie Doon None identified and not required • - Gaffney’s None identified and not required • - Creek (A1 Mine Settlement)

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 135 Name Existing Flood Mitigation Infrastructure (levees) Proposed Flood Mitigation Infrastructure (Levees)

Howqua None identified and not required • - Jamieson None identified and not required • - Maindample None identified. Local drainage issues identified in the • Shire to investigate drainage west of the township. solutions Mansfield None identified and not required • - Merrijig None identified and not required • - Merton None identified and not required • - Woods Point None identified and not required • - Mitchell Shire Council Broadford None identified and not required • Kilmore None identified. Overland stormwater management • Stormwater management options are currently being explored by Council implementation proposed by Council

Kilmore East None identified and not required • - Pyalong None identified and not required • - Reedy Creek None identified and not required • - Seymour None identified and town levee scheme is in detailed • Town Levee to protect against design phase riverine flooding from Goulburn River and Sunday and Whiteheads Creek catchments.

Tallarook None identified and not required • - Tyaak None identified and not required • - Whiteheads None identified and not required • - Creek Moira Shire Council Barmah Barmah Town Levees • The existing ad hoc levees, Description with the interconnecting road • The commencement of inundation by floodwater network does provide some occurs around the low-lying outskirts of the town at benefit against low level around 96.0 metres AHD. Which is around the 50% flooding. AEP (or 5-year ARI) type flood. • The current ad hoc levees are • A system of levees (combined with the connecting not owned or managed by roads) in the Barmah township has been constructed Moira Shire Council, and over the years, which appears to be carried out of unlikely to be managed into on a needs basis privately. The standard of the future. construction varies. Despite the town levees, the threat from flooding when river levels rise is still about the 96.0 metre AHD level or higher. The particularly levee heights are discussed below. Barmah Forest levee to Corry Street (north of Town) • The Barmah Forest levee extends some 39 kilometres to the north to Piree Creek. The levee elevation north of Barmah Township is generally around 96.6 metres AHD.

Corry Street levee

136 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 Name Existing Flood Mitigation Infrastructure (levees) Proposed Flood Mitigation Infrastructure (Levees)

• Approximately 330 metres in length and around 800 millimetres in height, this levee runs along the northern side of Corry Street at the general elevation of around 97.0 metres AHD from Barmah Bridge Road.

Shier to Evans Street Levee (Barmah Caravan Park) • Approximately 480 metres in length and around 600 millimetres in height this levee, which is runs through the Barmah Caravan Park, is at the general elevation of around 96.2 metres AHD.

Evans Street Levee • Approximately 380 metres in length and around 500 millimetres in height, this levee, which is runs behind seven residential properties adjacent to the Murray River, is at a general elevation of around 96.5 metres AHD.

Murray Street • The Murray Street itself acts as a levee at a general effective elevation of 96.7 metres AHD, which connects the Evans Street levee with the Riverview Drive Levee.

Riverview Drive Levee • Approximately 600 metres in length and around 400-600 millimetres in height, this levee, which is runs from Murray Street to Swan Court, behind 18 properties adjacent to the Murray River, is at a general elevation of around 96.6 metres AHD. Management Authority • Nil Levee condition and level of protection • Visually, the levees are in poor condition with narrow crest widths with steep batters. The Caravan Park is at the most venerable to flooding. • Leaving the Caravan Park levee aside, without freeboard, the level of protection for the town is around 3% AEP (or 30-year ARI) or 96.6 metres AHD. Assuming that 600 millimetre freeboard is required to determine the level of service, then it reduces 96.0 metres AHD that equates to around 20% AEP (5-year ARI) type flood. Bearii None identified and not required • - Cobram 1% AEP Approved Water Management Scheme (Water • Moira Shire currently Act 1989) implemented. Further augmentation now investigation augmentation identified as determined by the Regional Murray Flood options. Study (Water Technology, 2011) Katamatite None identified and not required • Koonoomoo None identified and not required • Lake Rowan None identified and not required • Marungi None identified and not required •

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 137 Name Existing Flood Mitigation Infrastructure (levees) Proposed Flood Mitigation Infrastructure (Levees)

Nathalia The 1978 Flood Study (SR&WSC) recommendations of • On-going maintenance and some eight kilometres were completed in the mid-1980s renewal work have been and were tested during the 1993 flood where carried out since 2012 and will overtopping was documented. Since then, the Nathalia continue by Moira Shire Floodplain Management Plan (SMEC, 2005) was Council completed leading to the augmentation levee works, temporary demountable barriers, completed in 2011. These proved successful during the highest flood in record in March 2012.). Aither (2014) economic review indicates that the damage avoided was in the order of $35 million. Numurkah Following the 1974 and 1993 floods, as series of low level • The Numurkah Floodplain levees were put in place, typical 300-450 millimetres in Management Study and Plan height to protect floodwater entering the northern has been investigating a range portion of the town and several residential homes and a of flood mitigation options, Numurkah Caravan Park to the west of Melville Street. which is nearing completion These were overwhelmed during the 2012 flood, which for the community was the flood of record. The AAD is some $730,000 pa. consideration. Refer to • Table F-32 at the end of this Appendix highlights irrigation channel along Kinnairds Road that would ultimately need to be part of the final scheme to be managed by Moira Shire Council.

St James None identified and not required • Strathmerton None identified • • Table F-32 at the end of this Appendix highlights irrigation channels south-east of the Town may provide urban flood protection. If decommissioned, Moira Shire Council should consider that these levees form part of a Water Management Scheme (or similar).

Tungamah None identified. There is a community desire to look at • There is a need to determine options for mitigation mitigation needs through a Floodplain Management Plan

Waaia None identified and not required • - Wilby None identified and not required • - Wunghnu None identified and not required • - Yarrawonga None identified and not required • There are stormwater management investigation and implementation option currently being carried out by Moira Shire Council

Murrindindi Shire Council Alexandra None identified. Unknown if mitigation is required or • Low priority effective. Suspect a low priority to determine if any mitigation is warranted.

138 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 Name Existing Flood Mitigation Infrastructure (levees) Proposed Flood Mitigation Infrastructure (Levees)

Buxton None identified. Unknown if mitigation is required or • Medium priority effective. Suspect a medium priority to determine if any mitigation is warranted given the significant number of floods since 1990s. Eildon None identified and not required • - Kinglake None identified and not required • - Central Kinglake East None identified and not required • - Marysville None identified and not required • - Molesworth Molesworth Caravan Park levee is privately managed. • - This levee in located adjacent to the Goulburn River and some 600 millimetres in height. Narbethong None identified and not required • Pheasant None identified and not required • Creek & King Lake West Strath Creek None identified and not required • Taggerty None identified and not required • Thornton None identified and not required • Toolangi None identified and not required • Yea None identified and not required • Strathbogie Shire Council Avenel None identified and not required • Euroa The existing Castel Creek is being augmented, upgraded • Ongoing maintenance, and extended to the 1% AEP (100-year ARI) standard, as renewal work and vegetation part of a Ministerial Approved Water Management and sediment management Scheme will be undertaken by Strathbogie Shire council.

Graytown None identified and not required • Locksley None identified and not required • Longwood None identified and not required • Mangalore None identified and not required • Nagambie 1. The existing Industrial Estate is inundated by 1. Pumping of the floodwater to floodwater from the Tabilk Depression above the 5% AEP the former VicRoads borrow pit is (20-year ARI) event. proposed. 2. A rural levee located on the former Nagambie- 2. Removal of the levee and the Heathcote road reserve, together with a disused Western part of the approach approach ramp to the Western side of the Old Chinamans ramp, both located within Bridge, are restricting flood flows and raising flood risk at Municipal Road, is proposed. the Nagambie Regatta Centre and Chinamans Bridge Caravan Park. Old None identified and not required • Longwood Ruffy None identified and not required • Strathbogie None identified and not required •

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 139 Name Existing Flood Mitigation Infrastructure (levees) Proposed Flood Mitigation Infrastructure (Levees)

Violet Town 1. A rural drain, acting to divert floodwater away from an 1. Upgrading and management of elevated section of the Old Hume Highway at Violet Town the Murray Street rural drain, has been overtopped by flash flooding. together with localised bunding or floor raising of houses, needs to be 2. There is a community desire to implement the considered. proposed Violet Town Floodplain Management Scheme which proposes a new flood levee to reduce above floor 2. Council intends to proceed with flooding in a 1% AEP (100-year ARI) type event from 63 to the establishment of a Water 17 properties. Management Scheme under the Water Act (1989), when workable improvements are made by the State Government in relation to Councils legal liability under the Act.

Table F-31: Regional (rural) Service levels – Structure flood mitigation works

Name Existing Flood Mitigation (Levees) Proposed Flood Mitigation Infrastructure (Levees) Broken Creek Catchment Broken None identified and not required Effluent Tributaries Lower Broken Miscellaneous private levees along Nine Mile and Broken Nil Creek Creeks downstream of Walshs Bridge Road, which have been surveyed as part of the Nathalia Floodplain Management Plan (SMEC, 2005). No formal management arrangements and quality is unknown. The height of the levee around the 1993 flood height (~5% AEP flood or 20-year ARI) Mid Broken Miscellaneous private levees along Nine Mile and Broken Nil Creek Creeks downstream of Katamatite. No formal management arrangements and quality is unknown. The height of the levee around the 1993 flood height (~5% AEP flood or 20-year ARI) Muckatah Some miscellaneous private levees exist along this Nil Depression system, extending from Dowdles Swamp to Numurkah. No information exists to their quality and level of service. Upper Broken Miscellaneous private levees exist along several Nil Creek locations of the Broken and Boosey Creeks. No formal management arrangements and quality is unknown. The height of the levee are generally 300-600 millimetres in height. Broken River Basin Lower Broken None identified and not required River Upper Broken None identified and not required River Goulburn Basin

140 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 Name Existing Flood Mitigation (Levees) Proposed Flood Mitigation Infrastructure (Levees) Acheron River None identified Nil Corop Lakes Miscellaneous private levees exist throughout the area. Nil No formal management arrangements and quality is unknown. The height of the levees are generally 450 – 1,000 millimetres in height. Dabyminga None identified and not required Creek Delatite River A large private levees identified. nil Ford Creek None identified and not required Seymour to None identified and not required Shepparton Granite Some miscellaneous private levees is suspected Nil Creeks identified by the Granite Creeks Regional Flood Mapping Study. Howqua River None identified and not required Lower Collectively some 170 kilometres of levees exists that Nil unless opportunities arise to Goulburn flanks both sides of the Goulburn River from Bunbartha integrate environmental outcomes, to the Murray River, and along the Deep Creek system, such as the rehabilitation scheme Wells Creek and Kanyapella Basin. (or similar) Lower King None identified and not required Parrot Creek Maindample None identified and not required ` Region Mid Goulburn Miscellaneous private levees exist throughout the area. Some survey locations are shown on the 1936 River Survey Plan (Molesworth to Eildon). No formal management arrangements and quality is unknown. Sunday & Dry None identified and not required Creeks Upper None identified and not required Goulburn Upper King None identified and not required Parrot Creek Whiteheads None identified and not required Creek Yea River None identified and not required Murray Riverina Murray River Description Landowners may carry out routine Levees • Uncoordinated construction of levees by private maintenance works under a permit (Cobram to land owners commenced as early as 1870 but process coordinated by Goulburn Barmah) coordinated construction began in 1895 by the Broken CMA where levees are Public Works Department (PWD) from Cobram to located on Crown land. Permits for Piree Creek (near ). Levees continue from levee maintenance on private land Piree Creek to Barmah by uncoordinated are subject to the provision of the construction. planning scheme. Management Authority • Nil Levee condition and level of protection

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 141 Name Existing Flood Mitigation (Levees) Proposed Flood Mitigation Infrastructure (Levees) • Variable condition and largely poor. The level of service is less than 20% AEP (20-year ARI), particularly accounting for a 600 millimetre freeboard. In the 2016 freeboard, in places, was zero.

Murray River Description Echuca • History of the levee construction is unknown. Village to Echuca Management Authority • Nil Levee condition and level of protection Variable condition unknown. The level of service is some 33% AEP (30-year ARI), particularly accounting for a 600 millimetre freeboard.

Where possible flooding impact to urban areas from non-backbone irrigation removal has been identified, LGAs will review whether such irrigation channels should be managed under a Water Management Scheme (or similar) – refer to Table F-32.

142 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 Table F-32: Possible flood impact to urban areas from irrigation channel removal

Name Urban Impact from Channel Removal

Benalla Rural City Council Benalla Yes. CH014612 & CH014611 near parallel to Price Rd, CH014610 parallel to Morey Rd, CH014609 & CH014608 crossing Kilfeera Rd.

Campaspe Shire Council -

Greater Bendigo City Council -

Greater Shepparton City Council Shepparton Yes, CH002406, CH002405, CH008700, CH008699, CH0017290, CH0017291, CH0017292, CH008701, East CH0017289, along Channel Road area. Shepparton/ Yes, CH015154, CH001663 and CH001666 near Wanganui Rd Mooroopna Orrvale Yes, CH002423 near Midland Hwy, CH001594 & CH014537 meet at the corner of Central Av and Poplar Av, CH008702 near Channel Rd, CH008686 parallel to Prentice Rd, CH008688 & CH008689 near Prentice Rd, CH014227, CH014226 & CH008685 meet near Orrvale Rd, CH008680 & CH014225 near Prentice Rd, CH017289 near Doyles Rd.

Mansfield Shire Council -

Mansfield Shire Council -

Moira Shire Council Numurkah Yes, CH005353 parallel to Kinnairds Rd, CH014530 crossing Kinnairds Rd Yes, CH009937 crossing Singapore Rd, CH009938 crossing Kokoda Rd

Murrindindi Shire Council -

Strathbogie Shire Council -

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 143 Appendix G: Service levels – Land-use planning Terminology DSL: Desirable Service Level L: Low FDTP: Flood Data Transfer Project (SKM, 1999 M: Medium LFDP Local Floodplain Development Plan (incorporated doc) H: High LUP: Land Use Planning UFZ: Urban Floodway Zone - No further action FO: Floodway Overlay LSIO: Land Subject to Inundation Overlay The following Table provides a guide (tool) to assign existing and desirable Service Levels for LGAs planning schemes in relation to floodplain management.

Service Level Descriptor Flood Information Guiding Policy Flood Zone and Overlays LFDP (and schedules) 0 Little to no development or future growth No mapping is available. Some Unlikely to be addressed in MSS. Nil No (Low) potential, e.g. Crown land, land with low- anecdotal evidence available. Unlikely to have a local policy on intensity rural uses and broad-acre flooding cropping, livestock farming. 1 Some development potential, but not Flood extents available from past May be addressed in MSS. May LSIO (base-level schedule). No (Low-medium) designated for growth. flood events. Some anecdotal have local policy on flooding. Potentially UFZ. E.g.: rural land, land abutting townships. evidence available. 2 Designated for high-intensity rural uses Flood extents available from past Addressed in MSS at a minimum. LSIO and FO (base-level Maybe (Medium) and low levels of urban development and flood events. Some anecdotal May have a local policy on flooding. schedules). growth. Typical areas: Small towns, peri- evidence available. Rudimentary, May have a LFDP (depending on Potentially UFZ. urban areas and lifestyle farms. low accuracy flood mapping, often expected level of development in based on historic floods, or non- flood prone areas). calibrated 1D modelling. 3 Designated for modest levels of low- Flood extents available from past Addressed in MSS. Likely to have a LSIO, FO and SBO (detailed Maybe (Medium-high) density urban development, growth and flood events, or calibrated 1D or 2D local policy on flooding. Usually locally specific schedules). possible urban expansion (large towns). flood modelling. includes a LFDP. 4 Designated for high-density urban Calibrated 2D flood modelling. Addressed in MSS. Includes a local LSIO, FO and SBO (detailed Maybe (High) development, high growth and urban policy on flooding. A LFDP exists to locally specific schedules). expansion (major regional centres). guide applications and decisions.

144 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 The following Tables provide an assessment and actions to address Service Level scores to improve planning schemes in terms of land-use planning relating to floodplain management for urban centres (for each LGA) and regional (rural) area. Also, an overall LGA-wide assessment is included against the tools available in planning schemes.

Benalla Rural City Council

LGA-wide Assessment

Local Planning Policy Schedule to Other Zone and Overlays Priority for LGA-wide Framework the flood amendment Overlay Controls (-, L, M, H)

Clause 21.02-1, 21.04- Nil Agreement in Poor coverage in current Very High 1 21.05-1, and 21.08 place until planning Scheme provides good Schedules are coverage of incorporated into floodplain planning scheme management matters

Specific locations (urban centres)

Location Land Use Existing Planning Scheme Information Planning DSL Zone/Overlay Description of flood mapping use and Incorporated Service location LFDP Level

Baddaginnie 2 Nil Parts of the town are known to be subject Nil 0 to flooding as documented in the FDTP. Introduce flood overlay controls using following completion of the Granite Creek Regional Flood Mapping Study.

Benalla 4 UFZ, LSIO Mapping based on 1993 flood information Nil 3 and early flood study by Willing and Partners in 1994. Benalla is subject to widespread flooding during large floods and continues to grow.

Devenish 2 Nil Evidence of flooding from recorded peak Nil 0 flood levels

Swanpool - Not Required Town is located on a high terrace some - - three metres above the Broken River floodplain.

Tatong 1 Nil Bulk of the Town is elevation. The Nil 0 eastern portion of the Town is however suspected to be liable to flooding from the Holland Creek.

Thoona 1 Nil Bulk of the Town is elevation above the Nil 0 Boosey Creek floodplain. The southern end of Town maybe subject to flooding

Winton 1 Nil The Town has landlocked area and subject Nil 0 to flooding from Winton and Seven Mile Creeks

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 145

Actions to address Service Level Scores – Benalla Rural City Council

Benalla Rural City Council Baddaginnie LUP DSL = 2; Service Level = 0 As part of LGA-wide amendment adopt the FDTP flood mapping and check mapping from the Granite Creek Regional Flood Mapping Study. This lifts the service level above 2. Benalla LUP DSL = 4; Service Level = 3 As part of LGA-wide amendment, the Goulburn Broken CMA, in conjunction with Benalla Rural City Council, will prepare UFZ, FO and LSIO mapping based on the reference 1993 flood together to Cardno modelling work of 2009. This lifts the service level to 4. Devenish LUP DSL = 2; Service Level = 0 As part of LGA-wide amendment, the Goulburn Broken CMA, in conjunction with Benalla Rural City Council, will prepare rudimentary mapping based on 2017 LiDAR and historic flood information. In the longer term, utilise mapping if and when the Upper Broken Creek Regional Flood Study becomes available. This lifts the service level to 2. Tatong LUP DSL = 1; Service Level = 0 As part of LGA-wide amendment adopt the FDTP flood mapping and check against available LiDAR. This lifts the service level above 2. Thoona LUP DSL = 1; Service Level = 0 As part of LGA-wide amendment, the Goulburn Broken CMA, in conjunction with Benalla Rural City Council, could prepare rudimentary mapping based on 2017 LiDAR and a 1% flood level estimate. This lifts the service level to 2. Winton LUP DSL = 1; Service Level = 0 There is currently no available detailed ground or flood information to allow any flood mapping. A scoping flood study could be carried out that may inform rudimentary mapping. This lifts the service level above 1.

Campaspe Shire Council LGA-wide Assessment

Local Planning Policy Schedule to Other Flood Zone and Overlays Priority for LGA-wide Framework the flood amendment Overlay Controls (-, L, M, H)

Clause 21.03-1, 21.03- Yes Six LFDP have Generally good. Low 3, 21.04-1, 21.04-2, been 21.04-5, 21.05-2, incorporated into 21.05-3, 21.09-1, the planning 21.09-3, 21.09-6 scheme. They provides good require a review coverage of floodplain management matters.

146 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 Specific locations (urban centres)

Location Land Use Existing Planning Scheme Information Planning DSL Zone/Overlay Description of flood mapping use and Incorporated Service location LFDP Level

Colbinabbin 2 FO and LSIO Mapping based on 1973, 1974 flood Yes 2 information. Overlays could be extended over east of town (school site).

Girgarre - Not Required The Town is not known to be subject to Yes - flooding.

Kyabram 3 LSIO Broad brush LSIO exist, which requires a Nil 2 review as part of a flood study

Rushworth - Not Required Local overland flooding is managed with - - stormwater works.

Stanhope 1 Nil No known history of flooding in Town. Nil 0

Tongala 1 Nil Local overland flooding is managed with Nil 0 stormwater works.

Wyuna 1 Nil Localised drainage path has been mapped. Nil 0

Actions to address Service Level scores – Campaspe Shire Council

Campaspe Shire Council Kyabram LUP DSL = 3; Service Level = 2 Carry out a new flood study to review the current mitigation scheme and to improve flood intelligence and mapping. This lifts the service level above 3. .

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 147 Greater Bendigo City Council Specific locations

Location Land Use Existing Planning Scheme Information Planning DSL Zone/Overlay Description of flood mapping use and Incorporated Service location LFDP Level

Costerfield - Not required - -

Costerfield - Not required - - South

Heathcote - Not required These areas lie on very small isolated - - East (RLZ) catchment and therefore little benefit of introducing overlay controls Heathcote - Not required - -

North (RLZ)

Mount - Not required - - Camel

Redcastle 0 Mapping Catchment through this area is some 18 Nil - would be square kilometres and there would be useful some merit of having rudimentary overlay controls but not likely to be implemented during the course of this Strategy.

Actions to address Service Level scores – Greater Bendigo Shire Council

Greater Bendigo City Council Redcastle LUP DSL = 0; Service Level = - Rural land mapping at a rudimentary scale would be required to address the desirable service level but is regarded as a low priority, and unlikely to be implemented during the course of this Strategy. No further action. This lifts the service level above 0.

148 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 Greater Shepparton City Council LGA-wide Assessment

Local Planning Policy Schedule to Other Flood Zone and Overlays Priority for LGA-wide Framework the flood amendment Overlay Controls (-, L, M, H)

Provides good Yes Six LFDPs have Generally good. Low coverage of been floodplain incorporated into management the planning matters. scheme. They require an update

Specific locations (urban centres)

Location Land Use Existing Planning Scheme Information Planning DSL Zone/Overlay Description of flood mapping use and Incorporated Service location LFDP Level

Bunbartha 1 FO and LSIO Minor updates are available as part of Yes 1 the lower Goulburn regional flood study

Cooma - Not Required The Town is not known to be subject to - - flooding.

Katandra 2 Nil Some aerial 2012 oblique photography Nil - West available that could be used for broad- brush mapping. No detailed ground level information is currently available

Merrigum 2 Not Required Flood mapping is based on a detailed Yes 3 flood study (2005)

Murchison / 2 FO and LSIO Flood mapping is based on limited Yes 1 Murchison historical information. New detailed East mapping available from the Murchison Flood Mapping Study, which needs to be utilised to update planning scheme.

Shepparton 4 Limited LSIO LSIO based on limited 1993 aerial Nil - East photography. Shepparton East Overland Flow Urban Flood Study, is now available and should be utilised to update the planning scheme.

Shepparton 4 UFZ, FO and Based on floodplain management study Yes 3 Mooroopna LSIO (2002). Requires updating based on the latest Flood Intelligence and Mapping Study.

Tallygaroopna 1 Mostly Nil Recorded peak flood levels available but Nil 0 no ground level information. Only broad-brush overlays could be prepared at this stage, until a floodplain management plan is carried out.

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 149 Location Land Use Existing Planning Scheme Information Planning DSL Zone/Overlay Description of flood mapping use and Incorporated Service location LFDP Level

Tatura 3 UFZ, FO and Based on Tatura Flood Study. Yes 3 LSIO

Toolamba 1 FO and LSIO Some minor improvement is required 1 that will be part of the Regional Goulburn and Broken Flood Mapping project.

Actions to address Service Level Scores – Greater Shepparton City Council

Greater Shepparton City Council Katandra LUP DSL = 2; Service Level = - West Only rudimentary low level mapping could be prepared, based on available flood photography. This lifts the service level to 2. Murchison/ LUP DSL = 2; Service Level = 1 Murchison Update planning scheme with new detailed flood mapping from the Murchison Flood Mapping Study East This lifts the service level to 4. Shepparton LUP DSL = 4; Service Level = - East Update planning scheme with new detailed flood mapping from the Shepparton East Overland Flow Urban Flood Study This lifts the service level to 4. Shepparton LUP DSL = 4; Service Level = 3 Mooroopna Update planning scheme with new detailed flood mapping from the Shepparton Mooroopna Flood Intelligence and Mapping study. This lifts the service level to 4 Tally- Only rudimentary low level mapping could be prepared, based on available flood photography. garoopna

150 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 Mansfield Shire Council

LGA-wide Assessment

Local Planning Policy Schedule to Other Zone and Overlays Priority for LGA-wide Framework the flood amendment Overlay Controls (-, L, M, H)

Provides good Yes Shire-wide LFDP Yes including UFZ through - coverage of in place Mansfield. floodplain management matters

Specific locations (urban centres)

Location Land Use Existing Planning Scheme Information Planning DSL Zone/Overlay Description of flood mapping use and Incorporated Service location LFDP Level

Bonnie _ _ _ _ _ Doon

Gaffney’s - - - - - Creek / A1 Mine Settlement

Howqua 1 FO Fair flood mapping has been placed into Yes 1 planning scheme using recent valley LiDAR data. Detailed hydrology recently completed should be utilised to provide improved flood mapping and intelligence.

Jamieson 2 LSIO and FO Flood mapping is based on hydraulic - 2 mapping as part of Jamieson Scoping Study. Detailed hydrology recently completed that may be utilised to provide improved flood mapping and intelligence.

Maindample 1 LSI0 Rudimentary mapping has been placed Yes 1 into planning scheme

Mansfield 3 LSIO and FO Flood mapping based on detailed 2D- Yes 3 hydraulic modelling.

Merton - - - - -

Merrijig - - - - -

Wood’s 0 LSIO Rudimentary mapping has been placed Yes 1 Point into planning scheme

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 151 Actions to address Service Level Scores – Mansfield Shire Council

Mansfield Shire Council Jamieson LUP DSL = 2; Service Level = 2 GB CMA will seek to improved regional flood mapping and intelligence for major floodplain valleys in the Shire including Jamieson due to availability of completed hydrologic study. This lifts the service level above 2.

Mitchell Shire Council LGA-wide Assessment

Local Planning Policy Schedule to Other Zone and Overlays Priority for LGA-wide Framework the flood amendment Overlay Controls (-, L, M, H)

Provides good Yes A LFDP is Overall fair to good Medium coverage of incorporated in coverage. Five major areas floodplain planning scheme will require updating. over management matters for the Goulburn the next few years River but requires a review.

Specific locations (urban centres)

Location Land Use Existing Planning Scheme Information Planning DSL Zone/Overlay Description of flood mapping use and Incorporated Service location LFDP Level

Broadford i 3 LSIO and FO Parts of the town are known to be subject Nil 2 to flooding. New flood mapping and intelligence project will provide revised flood mapping for the planning scheme.

Kilmore 4 Nil New flood mapping and intelligence Nil - project will provide new flood mapping for the planning scheme.

Kilmore 0 Nil Extent of flooding has yet to be defined. Nil 3 East i New flood mapping and intelligence project will provide new flood mapping for the planning scheme.

Pyalong 0 Nil Flooding is unlikely given the incised Nil - nature of the waterways relative to the developed areas. A check could be carried out using approximate modelling techniques

Ready 1 Nil Extent of flooding is unknown and yet to Nil - Creek ii be defined. New flood mapping and intelligence project will provide new flood mapping for the planning scheme as part

152 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 of the regional study for Dabyminga Creek.

Seymour 4 Nil Current flood mapping is sound along the Yes 4 (Goulburn Goulburn River – refer Whiteheads Creek River)

Tallarook 1 Nil Rudimentary low accurate broad-brush Nil 1 mapping has been used in the current planning scheme. More accurate mapping is available from the Tallarook Flood Mapping Project that should be used if the regional Dabyminga Creek Regional Study is delayed.

Tyaak ii 0 Nil Extent of flooding is unknown and yet to Nil - be defined. New flood mapping and intelligence project will provide new flood mapping for the planning scheme as part of the regional study for Dabyminga Creek.

Whiteheads 4 UFZ, FO and Current mapping is broad-brush along Nil 2 Creek LSIO Whiteheads Creek and its tributaries. Planning scheme requires updating once Whiteheads Creek Flood Mapping Study is completed. i Part of Sunday Creek and Dry Creek Regional Study ii Part of the Dabyminga Creek Regional Study

Actions to address Service Level Scores – Mitchell Shire Council

Mitchell Shire Council Broadford LUP DSL = 4; Service Level = 2 Introduce new UFZ, and revise FO and LSIOs from the Sunday Creek and Dry Creek Flood Mapping and Intelligence Study (funding approved late 2017). This lifts the service level above 4. Kilmore LUP DSL = 4; Service Level = 0 Introduce new UFZ, FO and LSIOs from the Kilmore Flood Mapping and Intelligence Study. This lifts the service level above 4. Whiteheads LUP DSL = 4; Service Level = 2 Creek Update the UFZ, FO and LSIOAs from the Whiteheads Creek Flood Mapping Study. This lifts the service level above 4. Pyalong LUP DSL = 0; Service Level = - A low priority. Plan to carry out approximate mapping methods to provide rudimentary mapping. This lifts the service level to 0.

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 153 Moira Shire Council LGA-wide Assessment

Local Planning Policy Schedule to Other Zone and Overlays Priority for LGA-wide Framework the flood amendment Overlay Controls (-, L, M, H)

Provides fair coverage Yes but LFDPs drafted but Overall good coverage but High of floodplain requirement not incorporated require updating along the management matters updating in planning Murray River, Broken Creek scheme and lower Goulburn areas

Specific locations (urban centres)

Location Land Existing Planning Scheme Information Use Planning Zone/Overlay Description of flood mapping use and Incorporated Service DSL location LFDP Level

Barmah 3 LSIO and FO Mapping based on estimated 1% AEP No 3 flood heights against accurate ground level data.

Bearii 1 LSIO and FO Rudimentary brush mapping based on No 1 estimated 1% AEP flood heights and one- foot ground contours.

Cobram1 2 LSIO and FO There is scope to improve overlay controls No 2 around from the Murray River Regional Flood protected Study - Dicks/Seppelts levees. areas

Katamatite ii 1 LSIO and FO Mapping based on estimated 1% AEP No 1 flood heights and aerial flood photography against one-foot ground level information. May improve mapping from the Upper Broken Creek Regional (Rural) Study

Koonoomoo i 1 LSIO and FO Mapping based on estimated 1% AEP Nil 1 flood heights and aerial flood photography against one-foot ground level information. May improve flood mapping from the Murray River Regional Flood Study - Dicks/Seppelts levees.

Lake Rowan ii 1 Nil Introduce FO and LSIO into planning No - scheme following completion of the Upper Broken Creek Regional (rural) Flood Study

Marungi - No required - - -

Nathalia 2 LSIO and FO Current mapping is fair. Mapping can be No 2 updated on a Shire-wide basis from the Nathalia Floodplain Management Study

154 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 Location Land Existing Planning Scheme Information Use Planning Zone/Overlay Description of flood mapping use and Incorporated Service DSL location LFDP Level

Numurkah 3 UFZ, LSIO and Current mapping overall is fair but No 2 FO inaccurate in sections. Mapping can be updated on a Shire-wide basis from the Numurkah Floodplain Management Study.

St James ii 1 Nil Introduce FO and LSIO into planning No - scheme following completion of the Upper Broken Creek Flood Regional (Rural) Flood Study.

Strath- - Nil Introduce new LSIO and FO into the No 1 merton i planning scheme prepared from the Murray River Regional Flood Study - Dicks/Seppelts levees to downstream of the Ulupna Creek confluence.

Tungamah ii 2 LSIO and FO Mapping based on estimated 1% AEP No 1 flood heights (from 1974 peak flood heights) against accurate ground level data. A floodplain management plan is required – possibly as part of the Upper Broken Creek (Rural) Study. Revised flood mapping to be utilised for planning scheme.

Waaia Not required Not subject to riverine flooding, but a - - significant drainage line has been identified that can be shown in the planning scheme. Such effort would be Shire-wide.

Wilby ii 1 Nil Introduce new LSIO and FO following - 0 completion of the regional upper Broken Creek Regional

Wunghnu 2 UFZ, LSIO and Rudimentary mapping based on estimated No 1 FO 1% AEP flood heights and foot ground contours.

Yarrawonga 3 Nil Flood mapping from Yarrawonga Overland No - Drainage and Flood Study be introduced into planning scheme

Yarroweyah i 2 LSIO Introduce revised LSIO and FO into the No 1 planning scheme from the Murray River Regional Flood Study - Dicks/Seppelts levees to downstream of the Ulupna Creek confluence. i Murray River Regional Study Cobram to Ulupna Area

2 Upper Broken Creek (Rural) Area

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 155 Actions to address Service Level scores – Moira Shire Council

Moira Shire Council Numurkah LUP DSL = 3; Service Level = 2 Update flood mapping from findings from the Numurkah Floodplain Management Plan This lifts the service level above 3. Tungamah LUP DSL = 2; Service Level = 1 Carry out a floodplain management Study with its finding utilised to update planning scheme flood overlays. This lifts the service level above 3. Cobram to LUP DSL = 2; Service Level 1 Ulupna Used the finding from the Murray River Regional Flood Study - Dicks/Seppelts levees to downstream of (Urban) Area the Ulupna Creek confluence to update planning scheme flood overlay including: • Cobram; • Koonoomoo; • Strathmerton; • Yarroweyah; and • Associated rural areas This lifts the service level to 2. Upper LUP DSL = 1; Service Level = 0 Broken Creek Carry out new Regional Upper Broken Creek Flood Study. The finding will be used to update the (Rural) Area planning scheme flood overlay including: • Lake Rowan • St James • Tungamah (possibly part of the regional study) • Wilby • Associated rural area primary along Boosey, Broken, Sandy Creeks This lifts the service level above 2.

156 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 Murrindindi Shire Council LGA-wide Assessment

Local Planning Policy Schedule to Other Zone and Overlays Priority for LGA-wide Framework the flood amendment Overlay Controls (-, L, M, H)

Provides good Yes A LFDP is Zone and Overlay used that - coverage of incorporated in are mostly based on broad- floodplain planning scheme brush mapping with low management matters for the Goulburn accuracy but which River but requires significant ground truthing a review. (exception is Yea which is based on Yea Flood Study)

Specific locations (urban centres)

Location Land Existing Planning Scheme Information Use Planning Zone/Overlay Description of flood mapping use and Incorporated Service DSL location LFDP Level

Alexandra 3 LSIO Broad mapping along UT based on account Nil 1 from the 1975 flood. Many other overland flow paths and tributaries identified. A riverine and overland flood study is required. Findings of the study to be used to introduce new overlay controls in the planning scheme (if warranted).

Buxton i 3 LSIO Broad inaccurate mapping used. Nil 1 Following the completion of the Buxton flood mapping study revise overlay controls in the planning scheme.

Eildon 1 Nil Possible minor overland flooding. Could Nil - carry out an overland flood mapping study but is unlikely to be a priority over the next ten-years

Flowerdale 2 LSIO and FO Planning scheme overlay controls require Nil- 1 updating based on completed Flowerdale Flood Intelligence and Mapping Study.

Kinglake - No required Minor drainage lines are deeply incised - - Central and unlikely to create major flooding problems.

Marysville i 3 LSIO Broad inaccurate mapping used. Nil 1 Following the completion of the Maryville flood mapping study revise overlay controls in the planning scheme.

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 157 Location Land Existing Planning Scheme Information Use Planning Zone/Overlay Description of flood mapping use and Incorporated Service DSL location LFDP Level

Molesworth ii 1 LSIO and FO Fair representation. Seek to update the Yes 1 planning scheme following completion of the Goulburn and Broken River Regional Study.

Narbethong Not required Some small deeply incised waterways are - - unlikely to create major flooding problems

Kinglake 1 Numerous waterways traverse through Nil - East, these areas and some minor overlay Pheasant flooding may be possible. If an overland Creek and flood study is carried out, introduce new King lake flood overlay control in planning scheme West

Strath Creek 1 LSIO Broad inaccurate mapping used. Parts of Nil 1 the town subject to possible flooding but severity of flooding is unknown. Introduce new overlay controls when the regional study for lower King Parrot Creek is undertaken

Taggerty 3 LSIO and FO Broad brush mapping used but modified Nil 1 based on community input. Revise overlay controls when Taggerty Flood Mapping Study is completed

Thornton ii 3 FO Fair representation. Seek to update the Yes 1 planning scheme following completion of the Goulburn and Broken River Regional Study.

Toolangi - Not required Yea River runs north of the town, which is Nil - deeply incised and unlikely to create any flooding issues.

Yarck 0 LSIO Broad-brush mapping used along Home Nil 0 Creek (along the western edge of town). Some minor waterways (with a catchment area of around 2 square kilometres) are not likely to pose flooding issues.

Yea 3 UFZ, LSIO and Accurate mapping exists for riverine type Nil - FO flooding from the Yea River and Boundary Creek and the SL score is 3. However, (Overland overlay flooding has been identified as an flooding) issue. Introduce new flood overlay controls in the planning scheme following a completion of an overland flood study. i Complete Buxton, Marysville and Taggerty together ii Undertake as part of the Goulburn and Broken River Regional Studies (new initiative for 2018)

158 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 Actions to address Service Level Scores – Murrindindi Shire Council

Murrindindi Shire Council Alexandra LUP DSL = 3; Service Level = 1 Carried out a riverine and overland flood intelligence and mapping study. Revise and introduce new overlay controls in the planning scheme This lifts the service level to 3. Buxton LUP DSL = 3; Service Level = 1 Complete the current Buxton Flood Mapping Study and revise overlay controls in the planning scheme. This lifts the service level to 3. Flowerdale LUP DSL = 2; Service Level = 1 Introduce revised flood overlay controls into the planning scheme. This lifts the service level to 3. Marysville LUP DSL = 1; Service Level = 0 Carried out a flood mapping study. Revise and introduce new overlay controls in the planning scheme. This lifts the service level above 2. Thornton LUP DSL = 3; Service Level = 1 Complete the Goulburn and Broken Rivers Regional Flood Study and revise flood overlay controls in the planning scheme. This lifts the service level to 3. Yea LUP DSL = 3; Service Level = - Carried out an overland flood mapping study. Introduce new overlay controls into the planning scheme. This lifts the service level to 3.

Strathbogie Shire Council LGA-wide Assessment

Local Planning Policy Schedule to Other Zone and Overlay Priority for LGA-wide Framework the flood amendment Overlay Controls (-, L, M, H)

Provides good LSIO and FO Agreement in Poor to fair coverage and High coverage of place until requires LGA-wide floodplain Schedules are improvements to the UFZ, management matters incorporated into FO & LSIO planning scheme

Specific locations (urban centres)

Location Land Use Existing Planning Scheme Information Planning DSL Zone/Overlay Description of flood mapping use and Incorporated Service location LFDP Level

Avenal i 2 UFZ, LSIO and Broad-brush flood mapping used. Revise Nil 1 FO and introduce flood overlay controls following the completion of the Granite Creek Regional Flood Study.

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 159 Location Land Use Existing Planning Scheme Information Planning DSL Zone/Overlay Description of flood mapping use and Incorporated Service location LFDP Level

Euroa 4 UFZ, LSIO and Mapping based on a 1997 flood study, Yes 3 FO which has some mapping anomalies. Revise flood zone and overlay controls from the completed Euroa Flood Intelligence and Mapping Study.

Graytown - Not required Possible minor flooding possible through Nil - this largely undeveloped area. This is a low priority and if a scoping study provides flood mapping information, then introduce into the planning scheme.

Locksley i 2 LSIO Broad-brush mapping used. Town is - 0 mostly high. Revise and introduce flood overlay controls following the completion of the Granite Creek Regional Flood Study.

Longwood i 1 LSIO Broad-brush mapping used. Some Nil 0 possible is suspected. Revise and introduce flood overlay controls following the completion of the Granite Creek Regional Flood Study.

Mangalore 1 Not required Flooding is suspected based on the past Nil - major storm of 2016. If a scoping study is carried out, then introduce flood overlay controls into the planning scheme.

Nagambie 3 Nil Introduce zone and overlay controls into Nil - the planning scheme from the completed Nagambie Flood Study.

Old 2 Nil Town is mostly high. Introduce flood Nil - Longwood i overlay controls following the completion of the Granite Creek Regional Flood Study.

Ruffy - Not required - - -

Strathbogie - Not required Creeks are deeply incised and unlikely to - - create major flood issues.

Violet 3 UFZ, LSIO and Broad-brush mapping used. Revise zone Yes 1 Town FO and flood overlay controls into the planning scheme for the completed Violet Town Flood Study. i Part of the Granite Creeks Regional Flood Study

160 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 Actions to address Service Level Scores – Strathbogie Shire Council

Strathbogie Shire Council Euroa LUP DSL = 4; Service Level = 3 Revise flood zone and overlay controls from the completed Euroa Flood Intelligence and Mapping Study. This lifts the service level to 4. Granite LUP DSL = 2; Service Level = 1 Creeks Area Revise and introduce zone and flood overlay controls following the completion of the Granite Creeks Regional Flood Study for: • Avenal; • Locksley • Longwood • Old Longwood • And associated rural areas from the Hume Freeway to the Goulburn River. This lifts the service level above 2. Nagambie LUP DSL = 3; Service Level = - Introduce zone and flood overlay controls following the completion of the Nagambie Flood Study. This lifts the service level above 3. Violet Town LUP DSL = 3; Service Level = 1 Revise zone and flood overlay controls into the planning scheme for the completed Violet Town Flood Study. This lifts the service level above 3.

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 161 Regional (rural centres)

Location Land Use Existing Planning Scheme Information Planning DSL Zone/Overlay Description of flood mapping use and Incorporated Service location LFDP Level

Broken Creek

1 LSIO and FO Mapping is mostly good, which has been Yes 1 Broken based on 1993 flood information and Creek available imperial ground contours. Tributaries Unlikely that a regional flood study will be justified in the short.

2 LSIO and FO Mapping is mostly good, which has been No 1 based on 1974 and 1993 flood Lower information and available imperial ground Broken contours. Revise flood overlay controls Creek from the Nathalia and Numurkah Floodplain Management plans.

1 LSIO and FO Mapping is mostly good, which has been No 1 based on 1974 and 1993 flood Mid Broken information and available imperial ground Creek contours. Revise flood overlay controls from the Numurkah Floodplain Management plans.

1 LSIO and FO Mapping is mostly good, which has been No 1 based on 1974 and 1993 flood information and available imperial ground Muckatah contours. Unlikely that a regional flood Depression study will be justify overlay control amendments. However, 2012 historical data would assist in updating flood maps

2 Nil, LSIO and Many towns are known to be impacted by No - FO major floods and have no overlay Upper controls. A regional flood study is Broken required to improve flood mapping and Creek intelligence. Revise and introduce zone and overlay controls following completion of the study.

Broken River

2 LSIO and FO Flood mapping from Benalla to Nalinga is No 1 poor missing substantial parts of the Lower floodplains. Revised historical mapping Broken underway for BRCC. In the longer-term, River the Goulburn and Broken River Regional flood study will provide high quality flood mapping and intelligence information.

162 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 Location Land Use Existing Planning Scheme Information Planning DSL Zone/Overlay Description of flood mapping use and Incorporated Service location LFDP Level

0 Nil The FDTP (available via the VFD) data is available but is broad-broad based on limited aerial photography interpretation Upper but should be utilised. In the longer- Broken term, the Goulburn and Broken River River Regional flood study will provide high quality flood mapping and intelligence information.

Goulburn System

1 LSIO and FO Broad-brush inaccurate flood mapping No 0 used. From the current Acheron hydrology work being carried the GB CMA Acheron will developed revised mapping based on River 2D hydraulic modelling based on LiDAR and surveyed features (bridges). This work will provide revised flood mapping for the planning scheme.

1 LSIO and FO Available 1973, 1974 and 1975 aerial Yes 1 flood photography together with imperial contours were utilised in the current Corop Lakes flood mapping for this area. The Corop Scoping study found that the overlay controls are mostly sound.

1 LSIO and FO Dabyminga regional flood study, would No - Dabyminga (in part for include the small towns of Reedy Creek, Creek Tallarook) Tallarook and Tyaak.

1 FO (partial) Flood overlay is based on valley survey Yes 1 data from LiDAR and is a fair presentation Delatite of the floodplain. Detailed hydrology River recently completed should be utilised to provide improved flood mapping and intelligence

1 Nil Detailed hydrology recently completed, Yes - which could be utilised to provide Ford Creek improved flood mapping and intelligence for rural areas and for Mansfield urban centre.

1 LSIO and FO 1974 RAAF aerial flood photography, peak Yes 1 flood level (1974, 1916) and limit imperial contours utilised. In the longer-term, the Goulburn Goulburn and Broken River Regional flood Seymour to study will provide high quality flood Shepparton mapping and intelligence information, which should be used to update planning schemes (Mitchell, Strathbogie and Greater Shepparton Councils)

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 163 Location Land Use Existing Planning Scheme Information Planning DSL Zone/Overlay Description of flood mapping use and Incorporated Service location LFDP Level

1 LSIO and FO Mostly broad-brush mapping based on Yes (for SCC) 1 aerial photography, oblique 1980s aerial Granite photography. The Regional Granite Creek Creeks Flood Mapping and Intelligence Study should be utilised to refined planning schemes (BRCC and SSC).

1 FO Flood overlay is based on valley survey Yes 0 data from LiDAR and is a fair presentation Howqua of the floodplain. Detailed hydrology River recently completed should be utilised to provide improved flood mapping and intelligence.

2 LSIO and FO Flood mapping bases on 1987 flood study, Yes (for CSSC 2 ground contours and historical peak flood and GSCC) heights and is considered a fair representation. Revised flood mapping Lower from the Lower Goulburn Floodplain Goulburn Rehabilitation Project could be used to revise flood overlay controls for Campaspe, Greater Shepparton City and Moira Shire Councils.

0 LSIO and FO Broad-brush mapping used based on Yes 0 Lower King aerial photography but modified based on Parrot Creek ground truthing.

1 LSIO Broad-brush mapping used initially based Yes 1 Maindample on aerial photography but modified based Region on ground truthing with community input.

1 FO Broad-brush mapping used initially based on aerial photography with some ground truthing. In the longer-term, the Goulburn and Broken River Regional flood Mid study will provide high quality flood Goulburn mapping and intelligence information, which should be used to update planning schemes (Mitchell, and Murrindindi Councils)

1 LSIO and FO Broad-brush mapping used initially based No 0 on aerial photography. Utilise the Sunday Sunday & and Dry Creek Regional flood study to Dry Creeks introduce and revise zone and flood overlay flood controls in the planning scheme (Mitchell Shire).

1 LSIO and FO Historical data used including 1950 flood No 1 Tatura/ and imperial ground data. Detail studies Tongala unlikely to add meaningful information at Region this time.

164 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 Location Land Use Existing Planning Scheme Information Planning DSL Zone/Overlay Description of flood mapping use and Incorporated Service location LFDP Level

1 Nil (excluding Flood overlay is based on valley survey Yes 1 Jamieson) data from LiDAR and is a fair presentation Upper of the floodplain. Detailed hydrology Goulburn recently completed should be utilised to provide improved flood mapping and intelligence.

2 LSIO and FO Broad-brush mapping based on aerial No 1 photography interpretation, and ground Upper King truthing with community input. Update Parrot Creek flood overlay control; using the Flowerdale Flood Intelligence and Mapping Study

1 UFZ, FO and Reasonable flood mapping used based on No 1 LSIO limited ground contours and recorded Whiteheads historical data. Update zone overlay Creek flood controls following the completion of the Whiteheads Creek flood intelligence and Flood Mapping Study.

3 UFZ, LSIO and Mapping is up to date including mapping No 4 Yea River FO from the Yea Flood Study.

Murray System

1 LSIO and FO Mapping based on a range of flood Yes 1 studies (historical peak flood levels and Murray sound ground level data). Could update Barmah to mapping using outputs from the Lower Echuca Goulburn Floodplain Rehabilitation Scheme Study

2 LSIO and FO Mapping based historical peak flood No 1 levels, aerial flood photography (including Murray satellite) and imperial ground level data. Cobram to Should update mapping using outputs Ulupna from the Regional Murray Flood Study to include rural towns: Koonoomoo, Yarroweyah and Strathmerton.

0 LSIO and FO Mapping based historical peak flood No 0 levels, aerial flood photography (including Murray satellite) and imperial ground level data. Ulupna to A regional flood study for this area Barmah unlikely given the low priority compared with other areas at this point of time

0 LSIO and FO Mapping based on a historical peak flood No 0 Murray levels and imperial ground level data but Upstream of some errors have been found. Could Yarrawonga update mapping as part of the global LGA upgrade.

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 165 Location Land Use Existing Planning Scheme Information Planning DSL Zone/Overlay Description of flood mapping use and Incorporated Service location LFDP Level

0 LSIO and FO Mapping based on a historical peak flood No 1 Murray levels and imperial ground level data. Yarrawonga Could update mapping as part of the to Cobram global LGA upgrade (in part, includes the East Regional Murray Flood Study).

166 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 Appendix H: Service levels – Total Flood Warning System (TFWS)

Background

There are two service level report cards produced, the first (RS1) based on all known variables aligned with the above, and the second (RS2) where the adjusted flood risk scores (for Factor G) are assigned based on stakeholder experience and input. In this regard, there are very few adjustments made to the flood risk scores that are documented below. The service level comparisons with the flood risks are presented below. The following colour codes visually aid where the Flood Warning Service (as a whole) are commensurate with the flood risk as follows: Red: Service level of the TFWS is less than level of flood risk Yellow: Service level of the TFWS is same as the level of flood risk Green: Service level of the TFWS is greater than the flood risk Further, the elements (the factors) that make up a TFWS system are coded: Pink: Element (factor) is less than the flood risk

The Tool has been “gamed” (a trial and error process) allowing possible improvements to some of the elements to elevate the score of the TFWS service level against the adjusted flood risk that is largely guided by the initial actions in the priority assessment in Chapter 3:. The detailed methodology is presented in Appendix K: TFWS assessment Tool methodology The following approach, key considerations and assumptions was carried out: 1. Using the (TFWS Tool) existing catchments Excel workbook: a) Update Tool input data to reflect regional Strategy actions identified following the input from stakeholder input. b) Review Factor G (Social and Economic Assessment – flood risk score) following the input from stakeholder input. c) For those management units where TFWS levels remain less than the adjusted score, “game” (trial) the Tool input data to achieve service level commensurate with the flood risk level. 2. Benefits to the TFWS arising from delivery of proposed detailed flood studies have been placed through the Tool where flood intelligence can be incorporated into planning schemes, response plans and the like. 3. Where the service level of a TFWS element is less than the adjusted flood risk level, opportunities exist to initiate action to improve that element. It is important to note as a number of elements (factors) within the Tool have a time component that acts to reduce their value to the overall TFWS as time pass (e.g. last major flood, Local Flood Guide, LFG, flood study and mapping, flood intelligence and MFEP) it is important to recognise that service levels for Factor D, E and F will continue to decline unless renewal or update activity occurs. 4. The reworked Tool has been extended to July 2017

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 167 The TFWS service levels are presented on the local government areas for urban centres, and followed by regional rural areas across the Goulburn Broken CMA region. Under each assessment, a summary of action/improvements are provided to match to flood risk scores.

Benalla Rural City Council (Urban Centres)

Service Levels Factor A B C D E F G Location/ Service Level Tier Location/ Dissemination Awareness (Factors A-F) Adjusted Flood River Reach DCN Forecasting & & Interpretation Response Planning River Reach Risk Score Communication Education

Baddaginnie 1 0 0 0 3 0 1 1 Baddaginnie Benalla 2 2 2 2 4 4 3 4 Benalla Devenish 1 0 0 0 0 0 1 0 Devenish Glenrowan (Rural City of Wang) 0 0 0 0 0 0 1 0 Glenrowan (Rural City of Wang) Swanpool 2 0 0 0 0 0 1 1 Swanpool Tatong 1 0 0 0 0 0 1 1 Tatong Thoona 0 0 0 0 0 0 0 0 Thoona Note Flood Risk Levels are the same as the Adjusted Flood Risk Score

Risk Level Colour Coding TFWS Element Service Level is less than Level of Risk Overall TWFS Service Level is greater than the Level of Risk Overall TWFS Service Level is equal to the Level of Risk Overall TWFS Service Level is less than the Level of Risk

Benalla Rural City Council

Benalla TFWS SL = 3; Flood risk score = 4 Improve dissemination and communication, awareness and education including introduction of planning scheme mapping from available flood data. Share site-specific property information - seek option using HydroNET hoisting. This lifts the TFWS SL above 3, which is still a little lower than the flood risk score

Campaspe Shire Council (Urban Centres)

Campaspe Shire

Kyabram TFWS SL = 1; Flood risk score = 2 Improve service level factors C, D, E and F through the completion of a new overland flood study. This lifts the TFWS SL above 2 which is still a little lower than the flood risk score

168 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 Greater Bendigo City Council

No identified priorities in terms of overall TFWS services.

Greater Shepparton City Council (Urban Centres)

Service Levels Factor A B C D E F G Location/ Service Level Tier Location/ Dissemination Awareness (Factors A-F) Adjusted Flood River Reach DCN Forecasting & & Interpretation Response Planning River Reach Risk Score Communication Education

Bunbartha 0 1 0 0 0 0 1 1 Bunbartha Cooma 0 1 0 0 0 0 1 1 Cooma East Murchison 1 1 0 0 4 4 2 1 East Murchison East Shepparton 1 1 0 1 4 4 2 2 East Shepparton Katandra West 0 0 0 0 0 4 1 0 Katandra West Kialla West 3 3 3 4 0 2 1 Kialla West Merrigum 0 1 0 2 4 0 1 2 Merrigum Murchison 4 3 0 1 4 4 3 1 Murchison Shepparton/Mooroopna 3 2 0 4 4 4 3 4 Shepparton/Mooroopna Tallygaroopna 0 0 0 2 0 4 1 3 Tallygaroopna Tatura 1 1 0 2 4 0 1 2 Tatura Toolamba 1 1 0 0 0 0 1 1 Toolamba Note Flood Risk Levels are the same as the Adjusted Flood Risk Score except for Shepparton/Mooroopna where it has been increase from 3 to 4.

Risk Level Colour Coding TFWS Element Service Level is less than Level of Risk Overall TWFS Service Level is greater than the Level of Risk Overall TWFS Service Level is equal to the Level of Risk Overall TWFS Service Level is less than the Level of Risk

Greater Shepparton City Council Merrigum TFWS SL = 1; Flood risk score = 2 Improve awareness and education (Local Flood Guide) and Response Planning (MFEP). This lifts the TFWS SL to 2, the same as the adjusted flood risk score Shepparton/ TFWS SL = 3; Adjusted Flood risk score = 4 Mooroopna Improve dissemination and communication (SMS Service), awareness and education (property-specific flood information on web portal) and including revised planning scheme mapping from floodplain management study. This lifts the TFWS SL above 3, nearing the same as the adjusted flood risk score of 4. Tally- TFWS SL = 1; Flood risk score = 3 garoopna A full flood study would be required to provide appropriate flood intelligence to improve interpretation, education and awareness. Improve dissemination and communication would also be required to be improved. This lifts the TFWS SL to 3, the same as the adjusted flood risk score Tatura TFWS SL = 1; Flood risk score = 2 Improve awareness and education (Local Flood Guide) and Response Planning (MFEP). This lifts the TFWS SL to 2, the same as the adjusted flood risk score

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 169 Mansfield Shire Council

Service Levels Factor A B C D E F G Location/ Service Level Tier Location/ Dissemination Awareness (Factors A-F) Adjusted Flood River Reach DCN Forecasting & & Interpretation Response Planning River Reach Risk Score Communication Education

Bonnie Doon 1 0 0 0 0 0 1 1 Bonnie Doon Gaffneys Creek (Castle Point/A1 Mine) 0 0 0 0 0 0 1 0 Gaffneys Creek (Castle Point/A1 Mine) Howqua 1 0 0 0 0 0 1 1 Howqua Jamieson 1 0 0 3 3 4 2 2 Jamieson Maindample 0 0 0 0 0 0 1 0 Maindample Mansfield 1 0 0 2 4 4 2 1 Mansfield Merrijig 0 1 0 0 0 0 1 1 Merrijig Merton 0 0 0 0 0 0 1 0 Merton Woods Point 0 0 0 0 0 0 1 0 Woods Point Jamieson adjusted to include FloodSafe and new overlay control and lifted Factor D from 1 to 3

Risk Level Colour Coding TFWS Element Service Level is less than Level of Risk Overall TWFS Service Level is greater than the Level of Risk Overall TWFS Service Level is equal to the Level of Risk Overall TWFS Service Level is less than the Level of Risk No identified priorities in terms of overall TFWS services.

Mitchell Shire Council (Urban Centres)

Service Levels Factor A B C D E F G Location/ Service Level Tier Location/ Dissemination Awareness (Factors A-F) Adjusted Flood River Reach DCN Forecasting & & Interpretation Response Planning River Reach Risk Score Communication Education

Broadford 1 0 0 2 0 4 1 2 Broadford Kilmore 0 0 0 0 4 0 1 1 Kilmore Kilmore East 1 0 0 0 0 0 1 0 Kilmore East Pyalong 2 0 0 0 0 0 1 0 Pyalong Reedy Creek 1 0 0 0 0 0 1 0 Reedy Creek Seymour 4 3 0 2 4 4 3 3 Seymour Tallarook 1 0 0 0 4 4 2 1 Tallarook Tyaak 1 0 0 0 0 0 1 0 Tyaak Whiteheads Creek 2 0 0 2 4 0 1 1 Whiteheads Creek Note Adjusted Flood Risk Scores are unchanged from Flood Risk Scores

Risk Level Colour Coding TFWS Element Service Level is less than Level of Risk Overall TWFS Service Level is greater than the Level of Risk Overall TWFS Service Level is equal to the Level of Risk Overall TWFS Service Level is less than the Level of Risk

Mitchell Shire Broadford TFWS SL = 1; Flood risk score = 2 Flood study is proposed for Broadford as part of the Sunday Creek Flood Intelligence and Mapping Study. This will provide flood intelligence to improve interpretation and flood overlay controls for the planning scheme. This lifts the TFWS SL above 2 which meets the flood risk score

170 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 Moira Shire Council (Urban Centres)

Service Levels Factor A B C D E F G Location/ Service Level Tier Location/ Dissemination Awareness (Factors A-F) Adjusted Risk River Reach DCN Forecasting & & Interpretation Response Planning River Reach Score Communication Education

Barmah 3 3 0 2 4 4 3 3 Barmah Bearii 3 1 0 2 0 4 2 1 Bearii Cobram 3 1 0 0 4 4 2 3 Cobram Katamatite 1 0 0 2 4 4 2 2 Katamatite Koonoomoo 2 1 0 2 3 4 2 1 Koonoomoo Lake Rowan 1 0 0 2 0 0 1 1 Lake Rowan Marungi 0 0 0 2 0 0 1 1 Marungi Nathalia 3 2 1 3 4 4 3 2 Nathalia Numurkah 1 0 0 2 4 4 2 4 Numurkah St James 1 0 0 2 0 0 1 1 St James Tungamah 2 0 0 2 0 4 1 3 Tungamah Waaia 0 0 0 1 3 0 1 1 Waaia Wilby 1 0 0 1 0 0 1 1 Wilby Wunghnu 0 0 0 2 4 4 2 3 Wunghnu Yarrawonga 2 2 0 2 3 4 3 1 Yarrawonga Lake Rowan & Wilby scores were increased to 1 Lake Rowan & Wilby scores were increased

Risk Level Colour Coding TFWS Element Service Level is less than Level of Risk Overall TWFS Service Level is greater than the Level of Risk Overall TWFS Service Level is equal to the Level of Risk Overall TWFS Service Level is less than the Level of Risk

Moira Shire Council Cobram TFWS SL = 2; Flood risk score = 3 Improve dissemination and communication, awareness and education including introduction of planning scheme mapping from floodplain management study • This lifts the TFWS SL to 3, the same as the adjusted flood risk score

Numurkah TFWS SL = 2; Flood risk score = 4 Implementation of Data Collection Network in-train together with new flood warning services (ERRTS). Numurkah floodplain management study will provide flood intelligence for all service level factors. • This lift the TFWL SL to near 4, the same as the adjusted flood risk score

Tungamah TFWS SL = 1; Flood risk score = 3 A full floodplain management study is flagged as a high priority that will assist with service level factors C, D and E. Flood Warning Services requirements will be reviewed as part of the study. This lifts the TFWL SL to 3, the same as the adjusted flood risk score Wunghnu TFWS SL = 2; Flood risk score = 3 Improved dissemination and communication. • This lifts the TFWL SL to 3, the same as the adjusted flood risk score

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 171 Murrindindi Shire Council (Urban Centres)

Service Levels Factor A B C D E F G Location/ Service Level Tier Location/ Dissemination Awareness (Factors A-F) Adjusted Flood River Reach DCN Forecasting & & Interpretation Response Planning River Reach Risk Score Communication Education

Alexandra 1 1 0 0 0 0 1 1 Alexandra Buxton 1 1 0 0 4 0 1 2 Buxton Eildon 1 0 0 2 2 0 1 0 Eildon Kinglake Central 1 0 0 0 0 0 1 0 Kinglake Central Kinglake East 1 0 0 0 0 0 1 0 Kinglake East Marysville 1 0 0 0 4 0 1 1 Marysville Molesworth 1 1 0 2 0 0 1 1 Molesworth Narbethong 1 0 0 0 0 0 1 0 Narbethong Pheasant Creek & Kinglake West 1 0 0 0 0 0 1 0 Pheasant Creek & Kinglake West Strath Creek 1 0 0 2 0 0 1 1 Strath Creek Taggerty 3 2 0 2 4 0 2 1 Taggerty Thornton 1 0 0 2 0 0 1 2 Thornton Toolangi 1 0 0 0 0 0 1 0 Toolangi Yea 1 0 0 2 4 4 2 2 Yea Note Adjusted Flood Risk Scores are unchanged from Flood Risk Scores

Risk Level Colour Coding TFWS Element Service Level is less than Level of Risk Overall TWFS Service Level is greater than the Level of Risk Overall TWFS Service Level is equal to the Level of Risk Overall TWFS Service Level is less than the Level of Risk

Murrindindi Shire Buxton TFWS SL = 1; Flood risk score = 2 Flood study is underway for Buxton. This will provide flood intelligence to improve Factors C, D, E and F including overlay controls for the planning scheme, Local Flood Guide and inclusion into MFEP. This lifts the TFWS SL above 2 which meets the flood risk score. Thornton TFWS SL = 1; Flood risk score = 2 Scoping flood study has been identified with a focus of improve flood intelligence around TFWS elements (Factors C, D, E and F). This lifts the TFWS SL above 2 which meets the flood risk score.

Strathbogie Shire Council (Urban Centres)

Service Levels Factor A B C D E F G Location/ Service Level Tier Location/ Dissemination Awareness (Factors A-F) Adjusted Flood River Reach DCN Forecasting & & Interpretation Response Planning River Reach Risk Score Communication Education

Avenel 1 1 0 0 4 4 2 1 Avenel Euroa 3 2 0 2 4 4 2 3 Graytown 1 1 0 0 0 0 1 0 Locksley 1 1 0 0 3 0 1 1 Longwood 1 1 0 0 3 0 1 1 Longwood Mangalore 1 1 0 0 0 0 1 0 Mangalore Nagambie 2 2 0 0 4 4 2 2 Nagambie Old Londwood 1 1 0 0 3 0 1 0 Old Londwood Ruffy 1 0 0 0 0 0 1 0 Ruffy Strathbogie 2 1 0 0 0 0 1 0 Strathbogie Violet Town 2 1 0 2 4 4 2 3 Violet Town Note Adjusted Flood Risk Scores are unchanged from Flood Risk Scores, except for Euroa and Violet Town where the scores been increased from 2 to 3.

Risk Level Colour Coding TFWS Element Service Level is less than Level of Risk Overall TWFS Service Level is greater than the Level of Risk Overall TWFS Service Level is equal to the Level of Risk Overall TWFS Service Level is less than the Level of Risk

Strathbogie Shire Euroa TFWS SL = 2; Adjusted Flood risk score = 3 Flood intelligence is available to improve awareness and education by providing site-specific property flood information via the web portal initiative, and improved dissemination and communication. This lifts the TFWS SL above 3 which meets the adjusted flood risk score.

172 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 Violet Town TFWS SL = 2; Flood risk score = 3 Flood intelligence is available to improve awareness and education by providing site-specific property flood information via the HydroNET initiative, and improved dissemination and communication. This lifts the TFWS SL above 3 which meets the flood risk score.

Regional (rural) areas

Service Levels Factor A B C D E F G Location/ Service Level Tier Location/ Dissemination Awareness (Factors A-F) Adjusted Flood River Reach DCN Forecasting & & Interpretation Response Planning River Reach Risk Score Communication Education

BROKEN CREEK SYSTEM BROKEN CREEK SYSTEM Broken Effluent Tributaries 0 0 0 2 0 4 1 2 Lower Broken Creek 2 1 0 2 0 0 1 1 Mid Broken Creek 1 1 0 2 4 4 2 1 Mid Broken Creek Muckatah Depression 1 0 0 2 0 4 1 1 Muckatah Depression Upper Broken Creek 1 0 0 2 0 0 1 1 Upper Broken Creek BROKEN RIVER SYSTEM BROKEN RIVER SYSTEM Lower Broken River 1 0 0 0 0 0 1 0 Lower Broken River Upper Broken River 2 1 0 0 0 0 1 0 Upper Broken River GOULBURN RIVER SYSTEM GOULBURN RIVER SYSTEM Acheron River & Tribs 1 0 0 2 4 0 1 1 Acheron River & Tribs Corop Lakes 0 0 0 0 4 0 1 1 Corop Lakes Dabyminga Creek 1 0 0 0 4 0 1 1 Dabyminga Creek Delatite River (at Delatite Rd) 0 0 0 0 0 4 1 1 Delatite River (at Delatite Rd) Ford Creek 1 0 0 2 4 0 1 1 Ford Creek Goulburn R (Seymour to Shepparton) 3 2 0 1 2 0 1 1 Goulburn R (Seymour to Shepparton) Granite Creeks 1 1 0 0 3 0 1 1 Granite Creeks Howqua River 1 0 0 0 0 0 1 1 Howqua River Lower Goulburn (d/s of Sheppaton) 2 2 0 2 4 0 2 1 Lower Goulburn (d/s of Sheppaton) Lower King Parrot Creek 1 0 0 2 0 0 1 1 Lower King Parrot Creek Maindample Region (at Dry Creek Road) 0 0 0 0 0 0 1 1 Maindample Region (at Dry Creek Road) Mid Goulburn 1 2 0 0 0 0 1 1 Mid Goulburn Sunday & Dry Creeks 1 0 0 0 0 0 1 1 Sunday & Dry Creeks Tatura/Tongala Region 0 1 0 0 0 0 1 1 Tatura/Tongala Region Upper Goulburn (u/s of Elidon) 1 0 0 0 0 0 1 1 Upper Goulburn (u/s of Elidon) Upper King Parrot Creek 2 0 0 0 4 0 1 1 Upper King Parrot Creek Whiteheads Creek 2 0 0 2 4 0 1 1 Whiteheads Creek Yea River 1 0 0 2 4 4 2 1 Yea River MURRAY RIVER SYSTEM MURRAY RIVER SYSTEM Barmah to Echuca 3 2 0 2 3 4 2 1 Barmah to Echuca Cobram to Ulupna 3 1 0 2 3 4 2 1 Cobram to Ulupna Piree Creek to Barmah 3 2 0 2 3 4 2 1 Piree Creek to Barmah Ulupna to Piree Creek 2 1 0 2 3 4 2 1 Ulupna to Piree Creek Upstream of Yarrawonga 2 2 0 0 4 0 1 1 Upstream of Yarrawonga Yarrawonga to Cobram 3 1 0 2 3 4 2 1 Yarrawonga to Cobram Note Adjusted Flood Risk Scores are unchanged from Flood Risk Scores

Risk Level Colour Coding TFWS Element Service Level is less than Level of Risk Overall TWFS Service Level is greater than the Level of Risk Risk Level Colour Coding Overall TWFS Service Level is less than the Level of Risk

Regional (rural) Areas Broken Effluent Tributaries TFWS SL = 2; Flood risk score = 3 (Pine Lodge, Daintons, Improvements to Factors D, E and F may be gained from a regional study Congupna, Guilfus and O’Keefe This lifts the TFWS SL above 2 which meets the flood risk score. Creeks)

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 173 Appendix I: Comments, Issues and Feedback Received at Public Information Sessions

Note an “x” has been placed in the relevant four RHS columns to signify topic under consideration

issue / location / comments Item & Total Flood Flood Total Response Municipal Flood Flood Municipal Warning System Warning Emergency Plans Mitigation Works Mitigation Land Use Use Land Planning

Seymour – 6th Feb 2017, 12 noon to 2pm

Goulburn River (Seymour to Shepparton) – higher priority for land-use planning. Although flood overlays do exist in planning schemes along this river reach, they are based on limited information. 1 New flood mapping will improve the accuracy in terms of flood extent. X Response 1 Medium priority is already appropriate The urban centres prioritisation for Mitchell Shire suggests that a flood assessment of Tyaak will be part of the Sunday Creek study. It is not in that catchment.

2 Response 2 X The rural towns of Tyaak and Reedy Creek are within the Dabyminga Creek catchment. Correct error in Main report but leave original in Appendix. Johnsons Lane Northwood • Built new house, floor height 700-800mm above 1% flood level, and decommissioned old house. • During the 2010-2011 floods, the home was isolated for 5 days, as access is cut by floodwater. 3 X • Flood levels, via the computer, are checked which is very important. • When Goulburn River reaches just below minor flood level, floodwater will start back flowing and filling local lagoons. • Owners have been on the property for 8 years and established a good level of flood awareness.

174 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028

issue / location / comments Item & Total Flood Flood Total Response Municipal Flood Flood Municipal Warning System Warning Emergency Plans Mitigation Works Mitigation Land Use Use Land Planning

Response 3 This is a good example of self-resilience and the good use of information on the web. Access to fit-for- purpose flood information is an important priority for the Regional Floodplain Management Strategy.

Reedy Creek (north-east of Avenal) is a perched waterway, where maintenance is constantly required by VicRoads to reduce the change of flooding over the Hume Freeway. 4 X X Should look at re-vegetation opportunities to assist with reducing run-off. Suggestion was made in relation to ongoing maintenance cost, for instance for a town levee, should be Bourne by the beneficiaries. Like fire – provide good quality information improve flood resilience

Response 4 Opportunities for an integrated catchment management approach, such as re-vegetation of upstream catchments is supported. The beneficiary pay principle for on-going maintenance cost should apply in line with the Victorian Floodplain Management Plan.

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 175

issue / location / comments Item & Total Flood Flood Total Response Municipal Flood Flood Municipal Warning System Warning Emergency Plans Mitigation Works Mitigation Land Use Use Land Planning Access to fit-for-purpose flood information is important priority for the Regional Floodplain Management Strategy - Whiteheads creek affects their area, Goulburn River is a worry for main part at Seymour and tourism business - Local agencies should put signs when they know Whiteheads Creek is flooding. Don’t want another death – use radio, Facebook and social media as well as TV if enough time - Difficult to balance flood risks and environmental/cultural heritage considerations - hasn’t liked loss of old 5 (heritage) buildings in the past X X X FF Response 5 New flood intelligence and mapping study is advanced and should assist with fit-for-purpose flood information for communities and MFEP. Also VICSES are looking at ways to improve community messaging for flash flood areas.

Nagambie – 6th Feb 2017, 5pm to 7pm

High Street Nagambie – once a year water is not able to drain, which can be in the order 500mm deep. Land has a drainage easement along the southern boundary that collects water from upstream areas. Eight trees grown in easement. Two trees have died in the drought. The floor of the dwelling is level with the ground, and at risk of over floor flooding. Part of office recently flooded due to poor drainage. Park Street has septic issues. End of Park Street has a retardation basin that requires to be emptied by pumping 6 Group meeting of Issues Drainage Drainage was a key issue. In particularly over Council requirements for new development (subdivision) that doesn’t include old infrastructure (retrospective drainage needs).

Response 6 Depending on priority of Council a drainage implementation plan for Nagambie could be an option. The new flood model may be utilised by Strathbogie Shire Council to consider drainage management options.

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issue / location / comments Item & Total Flood Flood Total Response Municipal Flood Flood Municipal Warning System Warning Emergency Plans Mitigation Works Mitigation Land Use Use Land Planning Possibly explore strategic approach such of Contribution Plans and Master Strategic Plan to address a raft of matters to be resolved. This issue is acknowledged but not part of the RFMS. Nagambie - drainage from east of High Street down Vickers Road, and drainage from the east Tabilk Depression around the Barwon Street area. 7 Drainage Response 7 See Response 6 Minor flooding caused by bad drainage of High Street, Nagambie at southern end of town – affects her home, driveway and street past front gate. A new drainage system needs to be implemented to address this. 8

FF Response 8 See Response 6 - Flood impacts include fencing, access and stock loss - Need more water level stations - Have concerns for catchment area concerning native forest habitat for native animals and birds, fish survival - Assessments at regular intervals of damage caused by clear felling of catchment areas to water supply, erosion, etc. 9 Response 9 Drainage X FF See Response 6 The matter of clear felling impacts on water supply rest with the water authorities. Furthermore, operator must comply with the Code of Practice for Timber Production (2014) Note the comment of more water stations. Warning for Nagambie will be looked at a part of TFWS Assessment tool being prepared by Michael Cawood and Associate.

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issue / location / comments Item & Total Flood Flood Total Response Municipal Flood Flood Municipal Warning System Warning Emergency Plans Mitigation Works Mitigation Land Use Use Land Planning

Benalla – 8th Feb 2017, 12noon to 2pm

Hollands Creek – 3 km upstream of Tatong. Impact of Handcocks timber plantations on sedimentation in creek and hence fish habitat. Impact on flooding. 10 X Response 10 Plantation operations must adhere to the Code of Practice for Timber Production (2014) Issue of Council potentially cutting urban drainage channels through the alluvial ridge of the Broken River and letting floodwater into new subdivision areas. Example is around Cowan Street.

11 X X

Response 11 This can be managed by the use of flood-gates and penstocks, which should be documented in the MFEP

Euroa – 8th Feb 2017, 5pm to 7pm

Low vegetation (understorey vegetation) planted on the floodplain and the impact on flooding. Part of the water management scheme is to remove vegetation regrowth on the floodplain. Also has discussions around vegetation 12 within the channel and on the floodplain along Honeysuckle Creek. X

Response 12

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issue / location / comments Item & Total Flood Flood Total Response Municipal Flood Flood Municipal Warning System Warning Emergency Plans Mitigation Works Mitigation Land Use Use Land Planning This matter is noted. Need to ensure that such proposed works are vetted by Strathbogie Shire Council to ensure planting programs are not counter to Euroa Water Management Scheme. Railway culverts/bridges have substantial sediment accumulation impacting on capacity. Also spoke broadly about catchment management activities….and what can be done upstream.

Response 13 Cardno Consulting has made recommendation on management, particularly around managing the 13 colonisation of vegetation that “locks” the sediment. Loose sediment is likely to be scoured during the X X height of major floods. Integrated Catchment Management opportunities, including planning/fencing programs are encouraged in upstream catchment areas to assist within improved waterway health and assisting somewhat for “slowing” floodwaters – but limited to smaller floods. Euroa has a high ranking for all four themes. Dam construction should be considered in terms of providing multiple benefits such as flood mitigation, tourism, water of agriculture.

14 Response 14 X The sheer size required and thus the enormous cost would never see the economic benefit. In addition, new large dams would likely be counter with the MDBA water cap.

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issue / location / comments Item & Total Flood Flood Total Response Municipal Flood Flood Municipal Warning System Warning Emergency Plans Mitigation Works Mitigation Land Use Use Land Planning The Seven Creeks is constricted at butter factory bridge. The bridge abutments on the east side of the bridge is the cause of the constriction.

15 X

Response 15 The butter factory bridge flood modelling was loaded and shown to the audience. Flood depth over this bridge is in the order of 900-1200mm deep for a repeat of a 100-year ARI flood. Also the flood mapping for the 5-year ARI was presented. The floodwater is contained upstream of the bridge and disperses across the floodplain downstream. The flood surface profile did show some minor afflux (increase in flood level) in the 5-year flood that could be attributed by the butter factory bridge. The complete removal of the bridge/abutment would have very limited benefit (and only extend meters upstream) in reducing the impacts of flooding. More community information for better understanding. Good data assists people to make informed decisions.

16 Response 16 X X Access to fit-for-purpose flood information for the community is important priority for the RFMS.

17 Honeysuckle Creek – Moved to include with 12.

Colbinabbin – 9th Feb 2017, 12noon to 2pm

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issue / location / comments Item & Total Flood Flood Total Response Municipal Flood Flood Municipal Warning System Warning Emergency Plans Mitigation Works Mitigation Land Use Use Land Planning Homes on the Bendigo-Murchison Road and on the Wanalta-Corop Road were threatened by flooding in the 2011(?) flood. Two on Wanalta Creek. Approximately 5-6kms north of Bendigo-Murchison Rd there’s around 15 houses at risk. 18 Colbinabbin School is difficult to manage/evacuate in a flood. X X

Response 18 Need to review MFEP Issues with landholders blocking the floodplain via earthworks/levees and issues with the raised Midland Highway. Important to maintain flood paths. Levee constructed in the past may need to be removed to restore functioning floodplains. Comments were made about LGA enforcement processes to deal with illegal activities on the floodplain. Management of the planning overlay.

Response 19 19 Very difficult to manage if the works are a decade old or so (even more so if pre-planning scheme of 1998) X X as works are considered part of the landscape. Further if works are be removed, compensation is likely to be paid to the beneficiary of the works. For new works the planning system can be used but this approach is complex and expensive. If there is an overwhelming community desire to have particular works removed, then the Water Management Scheme (Water Act 1989) process should be followed that is likely to include a detailed flood study to determine the impacts and benefits. Lack of information available to landholders on the operation of the irrigation system, including the western channel, flood gates, Groves Weir, the lakes to manage flooding. The “operation of the system” during last year 20 floods were beneficial. Comments made around strengthen community relationships. X X

Response 20

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issue / location / comments Item & Total Flood Flood Total Response Municipal Flood Flood Municipal Warning System Warning Emergency Plans Mitigation Works Mitigation Land Use Use Land Planning Noted. However, the benefits may not always transpire due to the size of the flood and due to capacity constraints of the Waranga Channel and during times when Lake Cooper is already at full supply level. Summary of GMW operation is as follows: • GMW will divert water from Wanalta Creek or Cornella Creek or both into the Waranga Western Channel (WWC) whenever possible. GMW diverts the water into the WWC for disposal to the Campaspe River, Greens Lake or Lake Cooper (in this order of priority). Diversions for offsite disposal are not permitted if the disposal causes or adds to flooding at the discharge point. • Diversions from Cornella Creek in Colbinabbin occurred in 2016 because the Campaspe River was below the Minor Flood Classification at Rochester. Disposal to the Campaspe River, Greens Lake or Lake Cooper did not occur in January 2011 because the Campaspe River at Rochester was in flood and both Greens Lake and Lake Cooper were full to capacity. Under these circumstances, the standard GMW procedure is to lower the level of the WWC as much as possible, close all regulators and allow creeks to follow natural drainage lines. • GMW does not currently publish the WWC operating rules for Wanalta Creek and Cornella Creek on its website. GMW did publish material describing channel operations during floods following the flooding in 2011 and 2012, but this material was removed at an unknown time. GMW will investigate reinstating material for the general public, although it notes that landholders should not rely on the channel system to act as a flood management device. The channel systems provide very limited protection against floods and are not designed for flood protection.

Consider the need for a Local Flood Guide. Follow up recommendation from the Corop Lakes Scoping Study. Medium priority for TFWS has been applied for Colbinabbin. Community relationships are encouraged to build community resilience. Flood warden approach within MFEP may be considered in the MFEP. However see Response 27(b) Lack of focus by GMW on drainage infrastructure/operations. GMW not maintaining their drainage infrastructure. 21 GMW won’t pump floodwater out of Greens Lake to assist with drainage. Landholders not getting anything for Drainage their drainage rates.

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issue / location / comments Item & Total Flood Flood Total Response Municipal Flood Flood Municipal Warning System Warning Emergency Plans Mitigation Works Mitigation Land Use Use Land Planning

Response 21 GMW uses Greens Lake as a water storage and captures catchment inflows wherever possible. It is not designed to act as a flood detention basin. The Goulburn Broken Catchment Management Authority received new Victorian government funding to restart the surface drainage program across the Shepparton Irrigation Region. The priority for investment in new drainage systems will be decided by GMW and the GBCMA in consultation with stakeholders and beneficiaries. Some new government money is available for community drainage. Priority for investment is determined by GMW (check this). In terms of drainage rates this is GMW matter and is beyond the scope of the RFMS. A few years ago there was a proposal to clean the Cornella Creek out.

22 Response 22 X Noted. However, this is of limited benefit during major floods. Comments concerning development of a compositing operation. Discussion about existing use rights land forming etc. Concern with communications between agencies such as LG, CMA, and GMW. For example, the Shire undertaking road works that will influence flood flows. 23 X Response 23 Planning permits are required for such activities. 1973, 1974, 1975 were the worst floods in the Corop Lakes district lasting many months/years severely impacting of agriculture. Also have significant drainage problems 24 Response 24 Noted.

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issue / location / comments Item & Total Flood Flood Total Response Municipal Flood Flood Municipal Warning System Warning Emergency Plans Mitigation Works Mitigation Land Use Use Land Planning Should identify opportunities where positive things can be achieved in the rural landscape, such as managing minor floods with appropriate levee protection.

25 Response 25 X New levees, particularly, in rural areas would need to cost effective, and not create adverse impacts to neighbouring property. New levee programs would been to follow the Water Management Scheme process outlined in the Water Act 1989. I understand from your comments (at the Colbinabbin community meeting) that GBCMA is not prepared to bite the bullet when it comes to dealing with levee bank or other obstructions to what are clearly 'natural' water courses where these have been in existence for more than a few years. This is largely due to a fear of expensive litigation - hardly a good (if practical) reason looking at the big picture. I find this disappointing, as it means that the declaration of drainage courses is somewhat meaningless if the natural flow is impeded by un-natural barriers.

Response 26(a) Refer to response to Response 19. Further experience in these matters are complex and the recommended approach under the Victorian Floodplain Management Strategy suggests a Water Management Scheme 26 approach would be process. X X X X EC If the community has a particular levee, or a group of levees in mind that should be removed to create a prima facie benefit to the community than the matter could be explored further. Refer to Section 17 of the Victorian Floodplain Management Strategy.

We discussed the need for closer co-ordination between authorities - specifically GBCMA, GMW, VicRoads, and Shire of Campaspe. There were examples cited where there was little evidence of this, and I wonder what plans are in place to remedy the problem. Maybe they are already in place, and it would be helpful to us to know how this will be done. The catchment between Colbinabbin and the Midland Highway is very flat, and even quite low obstructions such as road formations can cause significant flooding if culverts are not properly designed and maintained, or road re-sheeting is done without an understanding of drainage paths. This may not be a big issue as far as the built infrastructure is concerned, but even a few centimetres of water can damage or destroy a valuable

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issue / location / comments Item & Total Flood Flood Total Response Municipal Flood Flood Municipal Warning System Warning Emergency Plans Mitigation Works Mitigation Land Use Use Land Planning crop. In this regard we are of the opinion that the 2012 GHD flood study was too limited in its scope, and more needs to be done to develop a real understanding of floods, their impact, and their management.

Response 26(b) In relation of co-ordination of authorities, the Campaspe Planning Scheme requires particular requirements in relation to approvals. It is noted that low works in the flat terrain may cause adverse flood impacts. If not designed correctly. In terms of the 2012 GHD report, its purpose was to scope out fundamental matters and recommend further actions. The recommendations did not warrant further hydrologic or detail hydraulic flood modelling. This is because such effort and cost (many $100,000s) would provide little benefit in terms of managing legacy flood risk. It is agreed, that such further work in this area would provide insightful knowledge in understanding the nature of flooding, including how made-made features influence flooding, but the cost is prohibited. Furthermore, the current flood mapping serves land-use and development assessment process well.

We talked about the value of local knowledge, and particularly where early action on flood mitigation can be effective. Are there any plans to implement any form of local advisory system such as flood monitors or the like?

Response 26(c) Local knowledge, during both flood studies and the preparation for floodplain management plans, is considered paramount. At the outset of significant rainfall, and during major floods, the use of local “flood observers” is being addressed by the Control Agency for flood which is VICSES. Such arrangements may add significant intelligence, particularly where gauge networks are lacking. Flood inquiry acknowledged the importance of local flood knowledge. Such knowledge is built into the Municipal Flood Emergency Management Plan.

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issue / location / comments Item & Total Flood Flood Total Response Municipal Flood Flood Municipal Warning System Warning Emergency Plans Mitigation Works Mitigation Land Use Use Land Planning There was no discussion on the deployment and use of environmental water while I was there. Is there any current policy and/or strategy regarding the Corop wetlands overall? I gather the control structure planned for the Willoughby's Bridge location is now off the agenda, but an alternative lower-cost option for putting water into Gaynor Swamp is to proceed. Are there any other plans in this regard? I assume One-Tree and Two-Tree Swamps are now forgotten. Perhaps this was outside the scope of the meeting.

Response 26(d) Environmental watering is more aligned with the river health strategy and is beyond the scope of Regional Floodplain Management Strategy. Kyabram – 9th Feb 2017, 5pm to 7pm

Statements made by a Wyuna farmer: Has good awareness of river heights, relating to minor, moderate and major flood class levee predictions which are very positive and assist with flood response, i.e., shutting gates etc. The predictions are accurate, with a good amount of time to prepare i.e. 3-4 days lead time. Offset pump into river at the end of Alfred Road operated by GMW and works well. Management of water storages e.g. Eildon Weir should include flooding management outcomes

27 Response 27(a) X X X X GMW has target filling curves that are applied to manage storage operations. Storages are primary used for the provision of water responses. There is some flexibility in the operations with rainfall forecast (check with GMW).

Flood wardens was in place, but doesn’t seem to be as active anymore. More flood awareness is required across the community. There need to be a better liaising emergency structure in Campaspe Shire. Campaspe Shire should come out to the community and engage

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issue / location / comments Item & Total Flood Flood Total Response Municipal Flood Flood Municipal Warning System Warning Emergency Plans Mitigation Works Mitigation Land Use Use Land Planning

Response 27(b) The use of local “flood observers” is being addressed by the Control Agency for flood which is VICSES. Such arrangements may add significant intelligence, particularly where gauge networks are lacking. Flood inquiry acknowledged the importance of local flood knowledge. Such knowledge is built into the Municipal Flood Emergency Management Plan.

Whole Farm Plans - structural grades of the landscape need to be properly considered with neighbours to be considered.

Response 27(c) Whole farm plans are considered under the planning scheme process GMW take over private drainage schemes.

Response 27(d) This is considered beyond the scope of the RFMS. Whole farm plans are considered under the planning scheme process. Access during flood emergencies should require the maintenance of existing gravel road systems. Such road maintenance must be taken into consideration by local governments to ensure the right roads are passable.

Response 27(e) The maintenance of key roads may be considered under the Municipal Flood Response Plan, in concert with flood warning arrangements, where flood consequences are significant. There has been no maintenance along to tracks within the Lower Goulburn National Park this season, which impacts on the ability for emergency response ( e.g. end of Alfred Rd has been an issue, which has flood access implications).

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issue / location / comments Item & Total Flood Flood Total Response Municipal Flood Flood Municipal Warning System Warning Emergency Plans Mitigation Works Mitigation Land Use Use Land Planning

Response 27(f) This park falls under the management of Parks Victoria. There should be no access into the park during times of major floods. However, key well maintained tracks may assist during evacuations. This is a matter for Parks Victoria. Levee system has a lot of low spots due to 4WDs and motor bikes, which cause unnecessary damage. Levee maintenance is required. How do you pay for it and who does?

Response 27(g) The beneficiary pay principle for on-going maintenance cost should apply in line with the Victorian Floodplain Management Plan. Otherwise landowners may carry out maintenance works under the new permitting where levees are on Crown land. 1. Flood impacts - How does flooding across the floodplain affect you and your community? Does flooding impact on your livelihood such your home, business and/or agriculture use? It greatly affects the community by causing loss of livelihood, inconvenience, damage to property, pastures, crops and plants. As a member of the Kyabram Urban Landcare Group, our areas are greatly affected by flood. We plant and revegetate two areas that have been affected by flood in the last six years: firstly in the 2010/11 floods and 28 secondly with flooding that took place in the Spring of 2016. In these two events many plants – thousands of trees and shrubs that we had planted and grown in the Ern Miles Reserve and the Grey Box Reserve were X(d) FF inundated by water. If that were a fairly short time of inundation, e.g. 1 week to 10 days, plants and trees would mostly cope and recover. However in both 2010/11 and 2016, water lay in a stationary state for several weeks and hundreds of shrubs and trees were lost - a/ because in 2010/11 of the uncleared drain running along the north side of South Boundary road which runs west into the Parkland Golf course and then north until it meets the concrete drain running west to McEwen Rd. This prevented water draining off the Ern Miles Reserve (formerly known as the South Boundary Rd. Drainage Basin) three times during the Summer of 2010/11.

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issue / location / comments Item & Total Flood Flood Total Response Municipal Flood Flood Municipal Warning System Warning Emergency Plans Mitigation Works Mitigation Land Use Use Land Planning b/ because in 2016 excess water was released west from the Fauna Park along the concrete drain to McEwen Rd, but due to the capacity of water exceeding the capacity of the drain, much water overflowed into Grey Box Reserve, causing water to lie stationary for many weeks. In both cases hundreds of new and older shrubs, planted and cared for by our Group and many members of the Kyabram Community, with much time, cost and energy being spent on the work, were lost. 2. Flood protection, management and preparation - How can your floodplain be better protected or managed from the impacts of flooding? How do you think flood warnings for your community could be improved? Are you and your community well prepared for the next flood? How could preparation be improved? What flood information would be most useful? The South Boundary Rd. drain is in MUCH need of a clean, right along its length, from the north-east corner of Ern Miles Reserve, west and all the way to the Parkland Golf Course until it reaches the concrete drain which runs further west to McEwen Rd. Even at present the large dam in the Ern Miles Reserve is at capacity and drainage water runs at a trickle along this clogged drain all the way to the concrete drain. Flooding occurs on the Ern Miles Reserve when it shouldn't because of this clogged and uncleaned drain. I should add that Campaspe shire, after much encouragement and persuasion from our group and Kyabram's Drainage Committee, did clean a small section of this drain west of Lake Rd in about 2014. However this did not solve the drainage problem as so most of the drain was not cleaned. If this above mentioned drain were cleaned much of the drainage problem in the Ern Miles Reserve would be alleviated. The drain that runs north from the large dam in the Ern Miles Reserve into the South Boundary Rd. drain also needs to be cleaned but as we are a volunteer group and lack financial resources to pay for its cleaning we would be grateful if Council or NCCMA could clean it for us. Both the above mentioned drains are in urgent need of cleaning and consequently the drainage issue that we face would be mitigated. 3. Environmental and cultural heritage considerations - How do you see the balance between managing flood risks and protecting the cultural heritage and environmental values of waterways and wetlands? I believe flood mitigation enhances biodiversity within our wetlands and waterways.

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issue / location / comments Item & Total Flood Flood Total Response Municipal Flood Flood Municipal Warning System Warning Emergency Plans Mitigation Works Mitigation Land Use Use Land Planning As I have stated many hundreds of trees and shrubs were lost in an area that has benefited greatly from our Landcare group's effort to revegetate over 30 ha of land within the Kyabram precinct. Numerous birds have reappeared in our town due to our planting program at Ern Miles Reserve and the Grey Box Reserve e.g. The Singing honeyeater, Red-capped robin, White-tailed warbler (gerygone), Golden whistler, Jacky winter, White- winged chough, to name a few. Revegetating with indigenous species brings about a great result! Well over 100 native bird species, a great indicator of the health of the environment, have now been recorded in the Ern Miles Reserve with only 40 species prior to revegetation in 2001. Excess flooding, without sufficient drainage ruins this biodiversity. Good drainage is vital to the health and vitality of wetlands. Response 28 The lie of the land makes these areas vulnerable to overland flooding from localised storms. All the recommendations of the GHD report are yet to complete. Given the age of the GHD report and the release of Australian Rainfall and Runoff (2016) a review into flooding is considered a priority. Local drainage works rests with the priorities of local government.

Shepparton – 10th Feb 2017, 12 noon to 2pm

Improved flood information & better community information is welcomed 29 Response 29 X Access to fit-for-purpose flood information is important priority for the RFMS

Congupna – 10th Feb 2017, 5pm to 7pm

Drain 12 Issues over blockage – South of Boundary Road. Recent flooding such as August 2016. 30 Offer to meet landowners to explore that matter further. X Response 30

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issue / location / comments Item & Total Flood Flood Total Response Municipal Flood Flood Municipal Warning System Warning Emergency Plans Mitigation Works Mitigation Land Use Use Land Planning A site meeting was carried out with concerned community members. A background review revealed that approval for the works have been granted. It is therefore difficult to alter the works without the landowner’s agreement. Also see item 70.

Alexandra – 11th Feb 2017, 11am to 1pm

Concerned with potential impact of the proposed environmental floods in the Acheron River valley. That is, water backing up the Acheron River from the Goulburn River. 31 Response 31 The environmental flow proposal is beyond the scope of the Regional Floodplain Management Strategy. However, the concern is noted and must be addressed as part of the constraints management strategy. - Need to understand the impact of tributaries, not just the Goulburn River - High annual rainfall is variable in nature and impacts flood forecasting - Impact of Eildon Weir when full - Community confusion with Constraints – need to make clear to community that this flood strategy is not from MDBA or associated with Constraints (states that Constraints proposal will cause a 1993 size flood to the area every 2 years) 32 - Believes that floodplain strategy work will be wasted effort if constraints project goes ahead Response 32 X X EC See Response 31. Further, TFWS may require further rain and river gauge networks to take into account of variable rainfall. The Regional Floodplain Management Strategy’s vision is to assist with flood resilient communities as opposed to the MDBA objective around environmental watering. Environmental watering downstream of Eildon would see flows up to 9,500 ML/d (made up from natural flows with the balance from Eildon), which significantly lower than the 1993 flood of 48,000 ML/d (Check number)

Yea – 11th Feb 2017, 3pm to 5pm

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issue / location / comments Item & Total Flood Flood Total Response Municipal Flood Flood Municipal Warning System Warning Emergency Plans Mitigation Works Mitigation Land Use Use Land Planning Concerned with the lack of flood warning for the Yea valley and the township downstream. Response 33 Link the flood mapping to the new gauge in Yea. This is considered a priority. Such knowledge should be 33 uploaded into the MFEP and Local Flood Guide. X X If flood warning prediction services are to be arranged, the telemetered river and rain gauging network would need to be augmented. This is considered a low to medium priority given that there is limited consequence in Yea. The impacts are largely limited to the Caravan Park. Review the Minor flood level for Devlins Bridge. It is currently 1.8m and should be 1.5m. Response 34

34 The initial review of available flood photography indicates that there is merit is reviewing the Minor Flood X Class level. The Bureau of Meteorology has recently prepared standard forms that allows a request for such a change. This will be looked into by the GBCMA and Murrindindi Shire Council. The AAD should consider the cost of on-farm damage including fencing and pasture, loss of trees, erosion of banks. Response 35 35 The risk assessment is a first-cut rapid approach to set regional/statewide consistent priorities and has damage estimates for agricultural losses. Flood risk to dwellings in the township of Reedy Creek is potentially an issue. 36 Response 36 X X X Noted. This is part regional study along Dabyminga Creek. Reduce the risk of flooding by reducing environmental flows to in-stream flows under the Constraints Strategy. 37 Response 37

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issue / location / comments Item & Total Flood Flood Total Response Municipal Flood Flood Municipal Warning System Warning Emergency Plans Mitigation Works Mitigation Land Use Use Land Planning Environmental flow proposal in beyond the scope of the Regional Floodplain Management Strategy. However, the concern is noted and must be addressed as part of the constraints management strategy. - Believes Yea river gauge flow level of 1.5 represents actual minor flood level, not the current 1.8m level at which a minor flood level warning is issued (photos supplied of flooding at lower gauge height) - Supplied a number of photos of flooding in 2010 with notes as to times/dates/gauge heights – believes flooding 38 in Goulburn River has significant impacts upstream in tributaries and that impacts of flooding at various gauge X X WL heights are under estimated in official records/maps. Response 38 See Responses 34 and 37.

Tungamah – 13th Feb 2017, 10am to 12noon

Warning is provided (~2 days) but it is only by word of mouth. There is a lack of warning and information on ABC radio about Boosey Creek. Despite the potential for good warning times, in 2012 there was not much warning time for doing sand bagging. Some people in town were given only 1 hours warning to protect houses in 2012.

39 Major issue with Tungamah is complete isolation for 48 hours in all directions, i.e. the town becomes completely X X X isolated. Warning is important to the town and for the emergency response. Response 39 This town is considered a high priority for all four themes to build flood resilience. Rural drainage is a problem after the flood. Causeways have been built up and culverts are sometimes blocked (3 Chain Road recently). 40 X Elvin Street, Tungamah pipes recently blocked and causing flooding issues. Response 40

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issue / location / comments Item & Total Flood Flood Total Response Municipal Flood Flood Municipal Warning System Warning Emergency Plans Mitigation Works Mitigation Land Use Use Land Planning These need to be reviewed as part of a floodplain management study.

Banks and levees in the landscape push water onto other landholders and reduce flood storage. 41 Response 41 Refer to Response 19. Wilby and Almonds soil conservation scheme was never completed. Currently ends at Creek Road. Lack of drainage downstream of this point. 42 Response 42 Generally local drainage is beyond the scope of the Regional Floodplain Management Strategy. The weir in Tungamah was recently turned into a permanent structure and that influences flooding. In floods before 2012 the boards were pulled out of the structure prior to the flood and this reduced levels in town.

43 The rail line is important for ponding/ storing flood water and protecting the town. X X Response 43 These need to be reviewed as part of a floodplain management study. Tungamah sewerage infrastructure - pumping stations and treatment plant are probably at risk of flooding. Need to ensure information is provided to NE Water. 44 Response 44 X These need to be reviewed as part of a floodplain management study. Flood information would be shared with the asset owners. Milk Bar and Post Office in Tungamah are the best places to notify the community of public meetings. Need to consider putting notices up in towns for next meetings. 45 Response 45 Noted. Seek to utilised for future meetings

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issue / location / comments Item & Total Flood Flood Total Response Municipal Flood Flood Municipal Warning System Warning Emergency Plans Mitigation Works Mitigation Land Use Use Land Planning Drainage once the flood is over is a major problems. There were five minor floods last season. Levee around house and sheds have been constructed in rural areas. Local floodplain development plans allow for ring levees to be constructed to protect homes. Moira planning scheme may not have this. Response 46(a) Flood recovery response may assist with the impacts of floods during their recession. It is usual practice to allow ring levees around a home if over floor flooding is evident.

Emergency response- if an emergency alert is set off will trigger the siren at the local CFA shed to inform people about sand bagging. A lot of the people in town are unaware where the relief centre/ evacuation centre is Response 46(b) 46 X X X X Centres will be established depending on the nature of the emergency. Circumstances will dictate where centres will be established. It would be better to have flood warning services for Tungamah. An upstream gauge of the town would be better. A suggestion was made at the confluence of Sandy and Boosey Creek. Response 46(c) Warning is considered a high priority. Could be linked with operations around permanent levees and/or temporary levees, sandbagging etc. through emergency response. The greater the warning time means the better opportunity for the community response. As part of a total flood warning system flood and floor level data can be linked to gauge heights. Tungamah has a sewerage scheme (sewerage pumps at Alvin St and Barr Streets). Failure of the ponds following a flood and associated problems with contamination and health problems. Critical infrastructure is an issue.

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issue / location / comments Item & Total Flood Flood Total Response Municipal Flood Flood Municipal Warning System Warning Emergency Plans Mitigation Works Mitigation Land Use Use Land Planning Response 46(d) These need to be reviewed as part of a floodplain management study. Flood information would be shared with the asset owners. Comments from the community meeting suggested the flood overlays aren’t that accurate as its flood extent was “undergone”. Response 46(e) These needs to be reviewed as part of a floodplain management study.

Strathmerton – 13th Feb 2017, 1.30pm to 3.30pm

A lot of irrigation channels have been piped due to the connections project and this is likely to change the extent of flooding. Response 47 47 GMW has been working with both the Goulburn Broken and North Centre CMAs to assess non-back irrigation channels across the Goulburn Murray Irrigation District to ensure that the nature of flooding remain is not unduly altered. Strathmerton was flooded in 1975 due to the levee breaching at Koonoomoo. The Koonoomoo Road was closed for over a fortnight. 48 Response 48 Noted and has been documented. NSW levees failing in the October 2016 potentially redirected 65,000 ML/day into NSW and helped prevent a major levee failure in Victoria. NSW levees are being built up in response to the recent failures – funding announced by Barnaby Joyce. 49 X Response 49 Noted and damaged levees may be repaired following flood.

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issue / location / comments Item & Total Flood Flood Total Response Municipal Flood Flood Municipal Warning System Warning Emergency Plans Mitigation Works Mitigation Land Use Use Land Planning Emergency response and need for the evacuation for campers on the . The threat of a levee breaching/flooding closing Ulupna Bridge Road. 50 Response 50 X Parks Victoria played a major role in managing campers. The MFEP may be reviewed in terms of Ulupna Bridge Road. Better management of the levees is the key strategic flood management issue for the Strathmerton/Murray River area. Response 51 The potential management arrangements for rural levees have been documented in the Victorian Floodplain Management Strategy (VFMS). However, some commentary was made as follows: • Levees for urban centres has been clear with the lead agency being local government • Rural levees- private benefits as been the logic. Now the Victorian Floodplain Management Strategy indicates that all the beneficiaries play are part (not just private). This could include the broader 51 community, VicRoads, LGAs etc. X • Councils do not have the capacity to manage rural levees. There would be many things that would need to be considered. There are serious questions about the condition of the existing rural levees. Difficult to prioritise works. Question around legal liability is a major issue because of the unknown condition of the levels. • Council would be looking for external funding support. • The Road Management Act allows for the creation of a road management plan, which gives some parameters around what can be done based on available resources/priority. The VFMS is suggesting the used of the Water Act process known as Water Management Scheme. DELWP are reviewing legal liability. • Levee permitting process for individuals/groups is now available through the GB CMA for levees on Crown land. This is strictly for maintenance of levees. This is now on the GBCMA’s website. • 1996 a levee audit was undertaken along the Murray levees.

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issue / location / comments Item & Total Flood Flood Total Response Municipal Flood Flood Municipal Warning System Warning Emergency Plans Mitigation Works Mitigation Land Use Use Land Planning Concerns were expressed in the huge community effort in defending the levee. On this basis the community group believe that there would be interest in management arrangements. 52 Response 52 X The potential management arrangements for rural levees have been documented in the Victorian Floodplain Management Strategy (VFMS). Refer to item 51 for further response. A number of weak spots/issues with the PWD levees that were issues in October 2016, including Ulupna Island, have not been fixed. Response 53 53 X There are Natural Disaster Relief Arrangements whereby failed infrastructure may be repaired. This is usually done via a sponsoring authority e.g. the lower Goulburn levees were repaired via the local government on behalf of the community. The Goulburn Broken CMA will raise this with the CEOs. Yarroweyah and Strathmerton should be on the prioritisation list for towns in the strategy. 54 Response 54 X X X These towns have been included in the Murray River Regional Floodplain Management Study. Question about the lack of notice of community meetings: how can that be done better. Better use of posters in shops. 55 Response 55 Noted. Need to improve engagement. Asked questions about the use of drones in emergency response 56 Response 56 X VICSES are using drones. Raised issues with the operating rules of Hume Weir. Need to consider a concept of declaring a “wet year”. 57 X Request for better operating rules.

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issue / location / comments Item & Total Flood Flood Total Response Municipal Flood Flood Municipal Warning System Warning Emergency Plans Mitigation Works Mitigation Land Use Use Land Planning Response 57 Floods can occur at any time of the year and as such there is no flood season or no ability to declare a wet year.

Target filling curves are applied to manage storage operations. Storages are primary used for the provision of water responses. There is some flexibility in the operations with rainfall forecast. (check with GMW) Nathalia – 13th Feb 2017, 5pm to 7pm

Sandbagging concerns as follows: • More communication – last floods there was poor information at north of Barmah, near the Murray. Told 2 weeks before that the flood was coming, bought sand bags and sand. • Sand bags could not be sent back to NSW. • Landholder between Numurkah and Walshs Bridge - sand bags were not available in Numurkah when required. • 2016 flood – public meeting in Cobram said there was only 5,000 sandbags available from VICSES. Important to 58 X have them available early so people don’t have to work 24 hours a day. • Sandbags were made available too late in Barmah on a Sunday night after volunteers had left. Response 58 The communication and coordination of sand, sandbagging, resourcing is complex. Need to rely on multi- agency approach and good ICC communications. Understand that communication can be improved. Always seeking to improve the Municipal Flood Emergency Plan. Potential to improve flood mapping and warning for the lower Broken Creek, below the Nathalia town study. Response 59 59 X X There are flood warning services to Nathalia that can be used downstream of Nathalia. Flood mapping extends to Narioka linked to the Nathalia gauge. Further mapping is considered a low priority in this particular point of time.

60 Showing the flood mapping to the community may help reassure them. X

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issue / location / comments Item & Total Flood Flood Total Response Municipal Flood Flood Municipal Warning System Warning Emergency Plans Mitigation Works Mitigation Land Use Use Land Planning Response 60 Agreed. Mapping would assist with flood resilience, but would need to be fit-for-purpose. A priority to do a flood study on the Murray River downstream of Ulupna Creek. Response 61 61 X X X X Agreed. This work is required particularly if the question of levee management is to be addressed. Otherwise this is a low priority at this particular point of time. Identify weak links in the PWD levee and the potential consequences (flood extent) of such a failure for the public to understand the risk. Otherwise there is a lot of unnecessary stress. 62 Response 62 X X Some of this information does broadly exist but is complex to understand. The Water Technology – Rural Levee Assessment Report will be placed on to GB CMA’s website. On Broken Creek in 2012 a lack of information caused a lot of grief, need accurate information at Numurkah. Response 63 63 X Significant improvements have been made to the Municipal Flood Emergency Plan. Furthermore, the Bureau of Meteorology is investigating a new flood prediction service for Numurkah. Landholder highlighted the need for a river gauge at Yambuna Bridge. 64 Response 64 X Flood warning are provided to McCoy Bridge and the need for further river gauge needs to be explored. The beneficiaries for levees include the infrastructure adjacent the levee, including the major roads, VicTrack, 65 Telstra, Environmental Water Holder, Power infrastructure. X Response 65

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issue / location / comments Item & Total Flood Flood Total Response Municipal Flood Flood Municipal Warning System Warning Emergency Plans Mitigation Works Mitigation Land Use Use Land Planning The potential management arrangements for rural levees have been documented in the Victorian Floodplain Management Strategy (VFMS) that includes the beneficiary pay principle. Refer to item 51 response for further background reading. Need to access local knowledge to inform the flood plan and monitor flood heights/extent. Response 66 Local knowledge, during both flood studies and the preparation for floodplain management plans, is considered paramount.

66 X X At the outset of significant rainfall, and during major floods, the use of local “flood observers” is being addressed by the Control Agency for flood which is VICSES. Such arrangements may add significant intelligence, particularly where gauge networks are lacking.

Flood inquiry acknowledged the importance of local flood knowledge. Such knowledge is built into the Municipal Flood Emergency Management Plan. Concern that environmental flows in combination with rain events will cause flooding.

67 Response 67 This is a matter of operation procedures for managing environmental flows which is beyond the scope of this Regional Floodplain Management Strategy. 2012 flood was bigger than 1993. Authorities need to refer to historic information. Raised issues with the way the 2012 flood was managed. Flood awareness local information and input is critical… 68 Response 68 X X Flood inquiry acknowledged the importance of local flood knowledge. Such knowledge is built into the Municipal Flood Emergency Management Plan. Four critical issues: 69 X X X X 1. Information 2. communication

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issue / location / comments Item & Total Flood Flood Total Response Municipal Flood Flood Municipal Warning System Warning Emergency Plans Mitigation Works Mitigation Land Use Use Land Planning 3. Authorities take more note of local knowledge 4. Who will implement the issues Response 69 The above, to a large extent has been delivered through floodplain management plans and its implementation. The Regional Floodplain Management Strategy is seeking to prepare an ongoing three year rolling plan to deliver flood mitigation, total flood warning systems, land-use planning and municipal flood emergency plan to make community flood resilient. The Victorian Floodplain Management Strategy sets out accountabilities for delivery.

Mansfield – 18th Feb 2017, 11am to 1pm

Big flood risk above Jamieson and Goulburn – what about a risk assessments on the camping grounds. Howqua river has ability to rise pretty quickly, e.g. of campers having problems. Response 70 70 Camping grounds are managed by Parks Victoria. There would be some merit in establishing flood levels X X X within the camp grounds. This can be built into the regional flood study. Works has been done in this space for fire. Limited communication in the camping sites. EM has Camp Sites for fire evacuation in GIS that could be useful for the MFEP Mansfield needs targeted forecasting information (2011 event is an example). Individuals that need rainfall information are likely to already have it built in resilience. Response 71

71 Flood warning systems need to be fit for purpose. E.g. relying on rainfall information maybe one approach X X suitable for Mansfield rather than an expensive rain and river gauge network. This example would be different if there were dozens of over floor flooding problems. Weather underground stations (ground) – created by weather enthusiasts could be a good source of unofficial rainfall data, particularly during major storms. Also CFA Shed Weather gauges.

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issue / location / comments Item & Total Flood Flood Total Response Municipal Flood Flood Municipal Warning System Warning Emergency Plans Mitigation Works Mitigation Land Use Use Land Planning Maindample drainage issue, suggested two or three houses could be impacted by flooding

72 X X

Response 72 Noted. Worth doing a visual inspection. There is no ground level information for this area.

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issue / location / comments Works Planning Item & Use Land Mitigation Mitigation Total Flood Response Municipal Flood Warning System Emergency Plans 1. Flood impacts - How does flooding across the floodplain affect you and your community? Does flooding impact on your livelihood such your home, business and/or agriculture use? The flooding of Guilfus Creek has caused a lot of paddock damage and caused cattle to get sick due to water hanging around longer than usual and grass won’t grow where water laid for a long time. 2. Flood protection, management and preparation - How can your floodplain be better protected or managed from the impacts of flooding? How do you think flood warnings for your community could be improved? Are you and your community well prepared for the next flood? How could preparation be improved? What flood information would be most useful? The flooding would be better managed if the outfall of Guilfus Creek was made so it starts to run as soon as the water gets to the drainage channel rather than having to build up and rely on it being released into the drainage channel manually. 3. Environmental and cultural heritage considerations - How do you see the balance between managing flood risks and protecting the cultural heritage and environmental values of waterways and wetlands? 73 (nil) x FF 4. Other comments As there has been a permit for the structure at the end of the creek. If it can’t be made bigger and automated or removed to drain all the upstream properties, approx. 1000 acres. Suggest clean out the drain on left hand side of Boschetti Road going north and bring the water in at the front of the bank as there is a pipe across the road. All that needs doing is earthworks as the work that has been done will not fix the problem this may help a little.

Response 73 Refer to item 30. Further Greater Shepparton City Council is actively managing this complex matter with the local community.

1. Flood impacts - How does flooding across the floodplain affect you and your community? Does flooding impact on your 74 livelihood such your home, business and/or agriculture use? x FF We own a farm at Strathmerton that borders the Ulupna Creek. Approx. 100 acres of our farm was under water in the flood as this could not get into the creek. Loss of crop was a major issue.

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issue / location / comments Works Planning Item & Use Land Mitigation Mitigation Total Flood Response Municipal Flood Warning System Emergency Plans 2. Flood protection, management and preparation - How can your floodplain be better protected or managed from the impacts of flooding? How do you think flood warnings for your community could be improved? Are you and your community well prepared for the next flood? How could preparation be improved? What flood information would be most useful? The levee along the Ulupna Creek needs to be topped up in a number of places. The flaps on some pipes need to be fixed up to keep the water in the creek. The levee from Ulupna Island road downstream needs topping up to the junction of Ulupna Creek to Murray River junction. 3. Environmental and cultural heritage considerations - How do you see the balance between managing flood risks and protecting the cultural heritage and environmental values of waterways and wetlands? You must protect farmers from flood over environmental. The water is flooding Barmah Forest more now that 20 years ago, not always a benefit to the environment. 4. Other comments (nil)

Response 74 The Victorian Floodplain Management Strategy sets out the framework for existing mitigation infrastructure (namely levees). This includes a permitting process for individuals or the collection of individuals to carry out maintenance works. The Victorian Floodplain Management Strategy sets out policy about the three tiers of government will on invest in existing flood mitigation infrastructure if the investment criteria can be met. Given the “primary benefits” (VFMS wording) relate to private land, and given a strong reluctance of local government to manage such infrastructure (due to legal liability, particularly as the standard of levees are poor), then the levees may be maintained privately under the permitting process (if on Crown land) or planning permit process (if on private land).

Our property borders the river roughly between Koonoomoo and Strathmerton and the main issue which I think should be dealt with is the general maintenance of the banks which have been allowed to deteriorate to such a state that they couldn't cope 75 with a small event such as October's flood. A more specific issue is the weir on the Sheepwash Creek just prior to where it flows x EC into the Ulupna Creek. During the flood, while we were frantically sandbagging the levees on both sides of the Ulupna Creek we were flooded from the South side of the bank by water which flowed up the Sheepwash from the Ulupna creek and onto our land. This resulted in

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issue / location / comments Works Planning Item & Use Land Mitigation Mitigation Total Flood Response Municipal Flood Warning System Emergency Plans about 100ha of pasture being inundated and 60ha of crop resulting in the loss of about 100t of wheat and 50t of barley. My proposal is to alter the structure on the Sheepwash to allow drop boards to be put in to prevent water from the Ulupna Creek backing up when the river rises above 100,000ML/day. At the moment there is nothing stopping water flowing up the Sheepwash from the Ulupna and flooding our property. I can't see there being any problems with preventing the creek backing up at Farrell's Rd. This also removes the pressure on the levees upstream of the weir and the need to maintain them (not that anyone does this now). I have attached a photo of the weir.

Response 75 There is a long history associated with this structure. The structure built on Sheepwash Creek controls further propagation of a head cut and the function of the bed control. The invert on the downstream side of the creek is lower compared with the upstream side. As such the structure prevents backwater flooding for minor Murray River flow by virtue of the height of the upstream invert. Larger floods create further backwater flooding over lands as described in the above comments. As part of the works, an flood easement was created over the land – check files The Goulburn Broken CMA would not endorse the proposal of block this backwater due to unintended consequences, with doing detailed studies into third party impacts. In terms of maintenance of levees the comments provided in Response 74 are relevant.

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DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 207 Appendix J: DELWP’s Rapid Appraisal Methodology

Key data requirements The data required to estimate damages using DELWP’s rapid appraisal of flood risk methodology is publicly available as explained in Table J-33 and includes flood hazard data and asset datasets.

Table J-33: Datasets used in the rapid appraisal of flood risk methodology

Type Source Layer Name

Vic Map Catchments Land use Varies with Region (obtained from the DEPI CSDL data)

Asset Datasets - used to Rural buildings Vic Map features of interest (FOI) BUILDING_POINT.shp identify which assets are Vic Map Properties (VMPROP) at risk of inundation. Cadastre (obtained from the DELWP CSDL V_PROPERTY_MP.shp data)

Planning Zones Vic Map Planning zones (VMPLAN) PLAN_ZONE.shp

Flood Hazard Data - 100 year flood extent Victorian Flood Database extent_100yr_ari.shp required to determine the (indicative) probability and extent of inundation. Floodway Victorian Flood Database floodway.shp

These data sources are used to determine the inventory at risk and assess flood damages using a loss probability curve as explained in the following section.

Approach The rapid appraisal of flood risk methodology is comprised of three core tasks: 1. Establishing management units 2. Quantifying assets at risk 3. Quantifying flood damages and developing risk metrics.

1. Establishing management units The region under the management of a CMA can occupy a very substantial area and it is sensible to consider flood damages and floodplain management measures for sub-regions. A CMA’s region usually consists of the catchments of several rivers and smaller streams, and will contain a varied mix of urban and rural areas with differing characteristics. It is thus necessary to define smaller management units that allow the rapid appraisal to be applied systematically.

How management units are established is a matter of judgement for the analyst and those who are formulating management strategies and programs. The critical task is to define study areas which allow flood risk to be assessed in a manageable and systematic way. The broad criterion that should be used to guide the definition of study areas is that areas where the effects of a given cause are felt should be combined into a single study area.

As a general guide: • Urban flooding is separated from rural flooding. An individual town may be further divided, depending on whether flood mitigation is best managed separately in discreet management units.

208 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 • Rural flooding should be divided into practical management units where the assets at risk and the available flood warning time are comparable. o Rural study areas should be determined separately where significant land-uses (e.g. intensive animal or horticultural industries) are identified o Rural study areas should commence (or terminate) at a major waterway confluence where additional inflows and/or stream capacity can result in substantial changes in the annual exceedance probability of a single rainfall event o Rural study areas should be separated where flood warning is substantially different. Flash flooding (less than 6 hours), should be assessed separately from areas with between 6-12 hours of warning, and areas with greater than 12 hours. Similarly, with regard to the strategic output from the appraisal, the analyst may wish to consider how the findings can be communicated most effectively to engage with affected communities. The following may be taken into account:

• Local Government Area (LGA) boundaries – defining management units along LGA boundaries may be used to better rationalise local government contribution to flood risk mitigation. • Communities of interest – where a cohesive community group are reflected in a homogenous geographic unit, support for a specific risk mitigation strategy may be leveraged.

2. Quantifying assets at risk Flood damages can be grouped as follows: • Direct (tangible) damages comprise the physical impact of the flood, for example, damages to structure and contents of buildings, agricultural enterprises and regional infrastructure. • Indirect (tangible) damages comprise losses from disruption of normal economic and social activities that arise as a consequence of the physical impact of the flood; for example, costs associated with emergency response, clean-up, and disruption to transport and commerce. • Intangibles, or ‘non-market’ impacts, comprise losses which cannot readily be quantified in monetary terms (since market prices cannot be used). For example, loss in biodiversity, physical injury or increased stress levels for residents following a major flood event. For the purpose of DELWP’s rapid appraisal of flood risk methodology, only the following damages are quantified.

• Direct damage to buildings and contents (residential and non-residential) • Direct damages to agriculture • Indirect damages, resulting from the cost of emergency response (measured as a % of direct damage to buildings). • Building and contents The assumptions for determining the number of urban and rural building assets at risk are shown in Table J-34.

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 209 Table J-34: Property at risk assumptions

Urban Areas Rural Areas

Dataset used Vic Map properties Vic Map features of interest

For a property to have a building and/or be Property count One rural building is inundated for every two FOI suited for development, the cadastre must Assumptions (points) inundated be > 100 m2 and < 10,000 m2

Properties (buildings) were classified based on the planning zones outlined below: Planning Residential – TZ, GRZ, GRZ1, LDRZ, MUZ, NRZ1 assumptions Commercial – C1Z, C2Z Industrial – IN1Z, IN2Z, IN3Z

• Agriculture The digital flood datasets are overlayed on the land-use dataset to produce estimates of the exposure of each land-use to inundation. Data estimating the duration of inundation is also required. 3. Quantifying flood damages and developing risk metrics • Damage to buildings State-wide depth grids are not available with the flood extents in the VFD. Therefore in developing assumptions for the depth of flooding across the flood extent, an analysis was undertaken of 30 Victorian depth grids. The distribution of depth of flooding was used to determine unit damages for residential, commercial and industrial buildings (Table J-35). Table J-35: Distribution of flood depth by flood annual exceedance probability (AEP)

Flood depth above ground (m) AEP Total <0.2 0.2-0.4 0.4-0.6 0.6-0.8 0.8-1.0 1.0-1.2 >1.2

10% 49.4% 40.9% 5.7% 1.3% 0.5% 0.2% 2.0% 100.0%

1% 29.4% 39.1% 17.2% 5.3% 2.3% 1.2% 5.4% 100.0%

Source: DELWP depth grids from 30 Victorian flood studies (Aither 2015)

• Residential buildings Unit damages for each flood extent were calculated using depth damage data that is provided by the NSW Office of Environment and Heritage (OEH)11. Damage assumes generic losses for a single storey slab/low set residence. The calculation is shown in Table J-36.

11 A file from which residential damages can be adjusted for local conditions can be found at http://www.environment.nsw.gov.au/floodplains/StandardFloodplainRiskManagement.htm.

210 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 Table J-36: Weighted damage calculation per property (residential, commercial and industrial) by flood frequency

Weighted AEP Flood Depth % distribution Damage damage

10% <-0.1 52% $10,921 $5,690

-0.1-0.1 42% $29,159 $12,358

0.1-0.3 4% $67,445 $2,599

0.3-0.5 1% $73,685 $774

0.5-0.7 0% $79,924 $280

0.7-0.9 0% $86,164 $75

>0.9 0% $100,000 $175

100% $21,951

1% <-0.1 30% $10,921 $3,298

-0.1-0.1 40% $29,159 $11,780

0.1-0.3 18% $67,445 $11,886

0.3-0.5 5% $73,685 $3,392

0.5-0.7 2% $79,924 $1,702

0.7-0.9 1% $86,164 $947

>0.9 4% $100,000 $3,951

100% $36,955

The weighted unit damages for each flood extent are therefore:

Floodway – $21,951

1% AEP flood extent – $36,955

These weighted unit damages are then applied as part of DELWP’s rapid appraisal of flood risk methodology to assess the damage to residential buildings within each flood extent. For example, where 10 properties (identified using Vic Map data) were inundated within the floodway, then residential damages were estimated at $210,000. Furthermore, the damages for 100 properties inundated by the 1% AEP flood event were assessed at $3,700,000.

• Non-residential buildings Damage for commercial and industrial buildings are estimated using the United States of America’s Federal Emergency Management Agency (FEMA) relative depth damage curves. These curves are relative curves, meaning that they specify damage as a percentage of building replacement value (BRV). Given that no data is available for BRV, the following assumptions were made (Table J-37).

Table J-37: Assumed building replacement value for commercial and industrial buildings

Building footprint (m2) Unit cost ($/m2) BRV ($)

Commercial 250 $1,400 $350,000

Industrial 1,000 $1,200 $1,200,000

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 211 The BRV for industrial and commercial buildings is calculated by multiplying assumed building costs (Rawlinsons 2012) by the assumed building footprint of 1,000 m2. The weighted unit damages for each flood extent that are calculated are shown in Table J-38.

Table J-38: Weighted average damages for commercial and industrial buildings

Flood extent AEP Commercial Industrial

Floodway 10% $5,584 $8,489

1% AEP flood extent 1% $18,362 $55,352

Damages to Agriculture

The assumptions for assessing damages to agriculture are summarised in Table J-39.

Table J-39: Estimated agricultural losses

Land Total Annual Establishment Clean- Less than Unit More than Damages Costs up and 5 days 5 days inundation Rehab inundation

Dryland pastures $/ha - $90 $40 $40 $130

Dryland broadacre crops $/ha $100 $60 $40 $140 $200

Orchard $/ha $4,600 $5,000 $500 $5,100 $10,100

Grapes $/ha $2,300 $1,500 $500 $2,800 $4,300

Vegetables $/ha $9,500 - $500 $10,000 $10,000

Irrigated pastures $/ha $110 $430 $40 $150 $580

Irrigated broadacre crops $/ha $220 $220 $40 $260 $480

When certain perennial land-uses are inundated for longer than 5-7 days, waterlogging causes plant death and it becomes necessary to re-establish the plant species. The number of “threshold days” varies according to the land-use and time of year, but for modelling purposes is assumed to be 5 days.

DELWP’s rapid appraisal of flood risk methodology assumes that no losses in production are attributed to flooding of dryland pastures less than 5 days. In addition to losses of production, flooding will generally require expenditure to repair erosion, repair fences, remove debris, rocks or silt deposits from fields, and replace soil. The following clean-up costs are added to production losses: • pastures and broadacre crops, $25 per hectare • horticulture, $350 per hectare. No assumptions for livestock losses are made given the typically long warning times in Victoria.

Indirect damages

For the purpose of DELWP rapid appraisal of flood risk methodology, the main indirect tangible losses as a result of a flood event are the cost of the emergency response and repair. This includes the cost of clean-up, evacuation and emergency response.

212 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 Limited data is available from where indirect impacts can be quantified. For this reason, it is typical to account for all indirect impacts as a ratio of “direct” damage. Indirect damages are estimated as 25% of direct damage to both urban and rural buildings.

Using the loss probability curve

Flood risk is calculated using a loss probability curve. The curve plots damages against their probability of occurrence. The loss probability curve is based on three known points: • Damages based on areas of inundation shown on the flood maps for the 1% AEP flood extent; • Damages based on areas of inundation shown on flood maps for the floodway area (assumed to represent a 10% AEP event); and • The flood event where damages are judged to commence (20% AEP event is assumed). As demonstrated in Figure J-15 below, the large damages from low probability events are combined with lower damages from more frequent flood events using data for probability and calculated damage.

Figure J-15 Loss probability curve

The integral, or area under a loss probability curve, represents the annual average damage (AAD) resulting from all flood events over a long period of time. This risk metric is used to assess the benefit of mitigation options.

Population at risk

The population at risk is estimated by assuming the average number of people living in an inundated house. The population at risk is estimated by multiplying 2.6 residents per household (derived from the Australian Bureau of Statistics) by the estimate of buildings affected during each flood extent.

Developing comparable risk metrics

Given differences in the size of each study area, it is necessary to develop consistent flood risk metrics so that damages can be compared. There is no one risk metric that is likely to best capture the importance of flood risk within a study area.

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 213 The DELWP flood risk assessment methodology assesses flood risk within each management unit using the following metrics: • Density of damages (measured as the ADD divided by the AEP of hundred year flood event) • Absolute risk (the absolute size of the AAD from the cost-probability curve) • Population affected (measured as the AAPA divided by the population of the town)

A summary of each metric and its relative flood risk severity ranking is provided in Table J-40. Table J-40: Comparable risk metrics used in the rapid appraisal of flood risk methodology

Flood Risk Severity Density of Flood Damages1 Absolute risk2 Population affected3,4

0 No Data No Data No Data

1 0 0 0

2 $500 $100,000 4

3 $1,000 $200,000 10

4 $2,500 $500,000 30

5 $5,000 $1,000,000 60

Notes: 1. Measured as the AAD divided by the area of inundation for the 1% AEP flood extent. 2. The absolute size of the AAD. 3. Measured as AAPA divided by a town’s population (multiplied by 1,000). 4. No population has been determined for “rural” study areas. They are given a score of 1.

Other things to consider • The rapid appraisal of flood risk methodology does not capture: • The presence of critical infrastructure (roads, hospitals, utilities) • More at risk populations (retirement homes, hospitals etc.) • Flood risk where flood hazard data is absent • The potential risk to life (where flood depth and velocity is high for flash flooding) • The potential for regional growth (i.e. need for new planning overlays).

214 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 Appendix K: TFWS assessment Tool methodology

The process followed by CMAs and Melbourne Water included:

• Assess and rank regional flood risks (see Chapter 3:); • Determine existing TFWS service levels; • Identify those locations in need of TFWS improvements; • Identify a scope of works that will deliver the improvements sought for each identified location; and • Establish priorities for improvements. Establishing Regional Flood Risk

DELWP has developed a flood risk assessment methodology that can be used to assess and rank regional flood risks (refer to Section 4 of the VFMS and the Guidance Notes for “Using DELWP’s Rapid Appraisal Methodology”, “Identifying important regional and community infrastructure”). It is applied at the location and river reach scale and delivers relative risk rankings for different locations based primarily on annual average damages and the population at risk. More specifically, the methodology focuses on the social impacts of flooding at different locations in the region and uses available flood and asset information to assess flood likelihood and associated consequences. Secondary issues include the potential for key infrastructure to be damaged or disrupted by flooding (up to and including the 1% AEP event), the relative vulnerability of the population at risk, and any access or egress issues that may limit safe evacuations.

The TFWS Service Level Framework

A TFWS service level can be thought of in terms of the complexity or completeness of the information that support that particular element of the TFWS and is provided (or available) to an agency and / or community before and during a flood.

The TFWS Service Level Framework comprises five (5) service level tiers – from zero (0) to four (4) where Tier 0 designates a simple or basic service level and Tier 4 a complex / comprehensive level of service.

TFWS element service levels are detailed in Attachment A. The descriptors for each TFWS element deliver a broad level narrative of the features / level of development / sophistication expected to be present for each of the service level tiers. Service level tier descriptors are also provided for the sub- factors with due regard for what is measurable, scalable, and relevant and appropriate. The descriptors facilitate a quantifiable (deterministic) discrimination between the service level tiers.

It is generally not a trivial task to determine service levels for either a TFWS element or the system as a whole by considering the Framework descriptors alone without using the Tool. It is also likely to result in some inconsistencies as well as a subjective bias, particularly in the case where a number of sub-factors contribute to a service level score. It is therefore suggested that the service level descriptors are used to:

• Confirm Tool results (i.e. do Tool results match expectations and if not why not); • Inform discussions about an existing TFWS and its elements; • Verify or adjust perceptions of the service level being delivered by an existing TFWS, or its elements; • Guide adjustment of Tool results if and as required; and

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 215 • Inform discussions and decisions regarding improvements to or development of a TFWS.

The TFWS Assessment Tool

The current version of the TFWS Assessment Tool is described in the Tool Version 4A User Manual. The User Manual is available from DELWP.

216 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 Attachment 1: TFWS Service Level Framework and Tiers (as at May 2015)

Data Collection Network The data collection network refers to the detection, collection and transfer of rainfall, river heights and streamflow data. This data supports other activities associated with the other building blocks of the Total Flood Warning System. The more extensive the data network and the more automated the data collection processes, the higher the value of the data collection element within the total system. Typically, locations with a greater flood risk benefit from a higher DCN service level.

TWFS Assessment Tool A Sub factors Service Service Level Level Descriptor A1 A2 A3 A4 A5 A6 A7 A8 Tier Rain Gauge Sub Event Reporting Stream Gauge Rated Sites Elevation Sub Elevation Sub Distance Sub Distance Sub factor RG Sub factor Sub factor Sub factor factor #1 factor #2 factor #1 factor #2 0 No real time rainfall Manual rain No event Manual stream No rated sites No (or negative) Large elevation No (or negative) Large distance or river data gauges only, if reporting rain gauges only in catchment. elevation difference difference between distance between between at-risk available. any. gauges in within catchment, between the most the closest forecast most remote location (or reach) catchment if any. remote TBRG and location and the at- TBRG and first and closest forecast Manual gauges only, the first forecast risk location (or upstream forecast location or forecast if any. location. reach) or the location. location is forecast location is downstream of at- downstream of the risk location (or at-risk location (or reach). reach). 1 Real time rainfall Few rain gauges A low number of A low number of Little elevation Medium elevation Very little distance Medium distance and river height data in the catchment. event reporting stream gauges difference between difference between between most between at-risk available from sites rain gauges in within catchment. the most remote the closest forecast remote TBRG and location (or reach) upstream of the at- catchment. TBRG and the first location and the at- first upstream and closest risk location within forecast location. risk location (or forecast location. upstream forecast No event- the basin. reach). location. reporting rain gauges at the at- risk location or reach.

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 217 TWFS Assessment Tool A Sub factors Service Service Level Level Descriptor A1 A2 A3 A4 A5 A6 A7 A8 Tier Rain Gauge Sub Event Reporting Stream Gauge Rated Sites Elevation Sub Elevation Sub Distance Sub Distance Sub factor RG Sub factor Sub factor Sub factor factor #1 factor #2 factor #1 factor #2 2 Real time and Some rain gauges A low number of A low number of There is a rated Low to medium Small to medium Small to medium Small to medium rainfall river height in catchment, event reporting stream gauges site elevation difference elevation difference distance between distance between data available from including rain gauges in within catchment downstream of between the most between the closest most remote at-risk location (or sites upstream of the upstream. catchment. including a non- the at-risk remote TBRG and forecast location TBRG and first reach) and closest at-risk location within telemetered location or the first forecast and the at-risk upstream forecast upstream forecast No event- the basin. No gauges at the gauge at the at- reach. location. location (or reach). location. location. reporting rain at-risk location or risk location or River level gauges at the at- reach. reach. information available risk location or for the agreed reach. forecast location during rain / flood events. 3 Real time and Some rain gauges A moderate A moderate There is a rated Moderate to high Very small elevation Large distance Very small distance rainfall river height in catchment, number of event number of stream site upstream of elevation difference difference between between most between at-risk data available from including at the at- reporting rain gauges in the the at-risk between the most the closest forecast remote TBRG and location (or reach) sites upstream of the risk location or gauges in basin. location or remote TBRG and location and the at- first upstream and first upstream at-risk location within reach and catchment reach, but the the first forecast risk location (or forecast location. forecast location. Permanent the basin. upstream. including at-risk location location. reach). telemetered upstream of the (or reach) itself Permanent stream gauge at at-risk location or is not rated. telemetered river the at-risk location reach. level gauge or reach. operational for the No event- agreed forecast reporting rain location. gauges at the at- risk location or reach.

218 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 TWFS Assessment Tool A Sub factors Service Service Level Level Descriptor A1 A2 A3 A4 A5 A6 A7 A8 Tier Rain Gauge Sub Event Reporting Stream Gauge Rated Sites Elevation Sub Elevation Sub Distance Sub Distance Sub factor RG Sub factor Sub factor Sub factor factor #1 factor #2 factor #1 factor #2 4 Real time and Multiple rain A high number of A high number of Rated site at Large elevation The closest forecast Medium to large The at-risk location rainfall river height gauges in event reporting stream gauges in the at-risk difference between location and the at- distance between (or reach) and data available from catchment rain gauges in the the basin. location or the most remote risk location (or most remote closest upstream sites upstream of the upstream, basin, including at reach. TBRG and the first reach) are at the TBRG and first forecast location are Telemetered at-risk location within downstream and the at-risk location forecast location. same elevation (co- upstream forecast at the same stream gauge at basin. at the at-risk or reach. located). location. location. the at-risk location location or reach. Permanent (or reach) and telemetered and upstream. rated river level gauge operational for the agreed forecast location. Information available for storm surge and tidal flooding for coastal flood risk locations.

Notes: i) Stream gauges include manually read staff gauges ii) The Service Level descriptors provide a qualitative description rather than quantitative to avoid conflict with the TWFS Assessment tool and ensure that the service level of a location is being considered relative to the size of the basin it is within. iii) Negative elevation or distance means that the forecast location is downstream of the at-risk location or river reach.

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 219 Prediction (Forecasting) Prediction (forecasting) refers to the approaches, processes and models that use the data collected for predicting or forecasting the characteristics, behaviour and lead time of flooding in watercourse reaches and at at-risk locations.

TWFS Assessment Tool C Sub factors Service Level Service Level Descriptor B4 B5 B1 B2 B3 Tier Significant Storage Sub Response to Need Sub Forecast Sub factor Model Sub factor FWS Charter Sub factor factor factor 0 Generic basic flood watch and severe Generic flood watch and No forecast methods or No FWS charter in Storages exist upstream Not needed if breaking weather / flash flood warning services only severe weather / flash flood models available. catchment. and would benefit from down to locations. provided by BoM. warning services only. being forecast through but No real time data are not forecast through. No real time data available. No formal or informal flood available. forecast methods in No real time flood forecasts provided across catchment. the catchment. 1 No formal prediction service. Generic basic service only No formal forecast No FWS charter in from BoM (flood watches, methods or models catchment. Rainfall and / or river height data available in flash flood warnings). available. near real time at or near the location of interest (available locally or from BOM No formalised forecast Informal models or website). service however informal methods may be available forecast techniques may at local level. exist. Real or near real time data may be available. 2 Non-location specific qualitative forecasts Generic basic service from Forecast is based on FWS charter exists may be provided by BoM. BoM (flood watches, flash observed behaviour downstream of the at-risk flood warnings). against flood class levels location (or reach). Rainfall and river height data available from or (rainfall or river) trigger BoM website in near real time, at or near the Non-location specific formal levels. location of interest. qualitative forecast may be provided by BoM based on Rainfall and river height Flood class levels or trigger levels determined exceedance of flood class data available in near real for information locations or monitored sites. levels or trigger levels for time.

220 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 TWFS Assessment Tool C Sub factors Service Level Service Level Descriptor B4 B5 B1 B2 B3 Tier Significant Storage Sub Response to Need Sub Forecast Sub factor Model Sub factor FWS Charter Sub factor factor factor Flood charter may exist downstream of the information locations or at-risk location or reach. monitored sites. 3 Location specific qualitative flash or riverine Generic basic service from Observed behaviour FWS charter exists Storages exist at or flood warnings provided by BoM or local BoM (flood watches, flash coupled with analogue or upstream of the at-risk upstream and the nearest entity (e.g. LG, RWA, etc.). flood warnings). qualitative assessment location (or reach). storage is forecast (e.g. peak height / flow through. Flood class or trigger levels determined for Location specific qualitative correlations, flood curves, that location. flood (riverine, flash) No storages upstream IFD assessments, rates of warnings are issued based that require forecasting Flood charter may exist upstream of the at- rise, etc.). on observed exceedance of through. risk location or reach. flood class levels or flows at Rainfall and river height river sites or exceedance of data available in near real trigger levels at monitored time. rain or river sites. 4 Quantitative river height and timing forecasts Generic basic service from Rainfall / Runoff model FWS Charter exists for (rise, fall, peak, critical levels) across flood BoM (flood watches, flash available for at-risk the at-risk location (or event duration at the location of interest flood warnings). location (or reach). reach). within agreed and specified accuracy bounds. Quantitative forecasts Rainfall and river height Flood class or trigger levels determined for (riverine, flash) are issued data available in near real the at-risk location. for the duration of the flood. time. Flood charter exists for the at-risk location or reach.

Notes: i) Formal forecasts refer to those issued by the BoM or a LG-owned flash flood warning system while informal forecasts refer to those issued by others (e.g. RWA, local group, etc.). ii) Significant storages refers to storages that would benefit from being considered in forecasting models because of the impact they may have on flooding. iii) It is assumed that even if a location does not have a FWS Charter, there will be a benefit to that location if an upstream or downstream location does have a FWS Charter.

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 221 iv) Locations that have no upstream storages requiring forecasting are assigned the same rating as those locations that have storages upstream with forecasting. This is aimed at avoiding any skewing or biasing of results, particularly for locations without an upstream storage. v) Forecasting through refers to the practice of developing and disseminating a downstream forecast ahead of outflows from a storage being confirmed either through head / tail gauge readings or gate operations.

222 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028

Dissemination (Dissemination and Communication) Dissemination (and Communication) accounts for the various methods and technologies used to disseminate flood warning information between agencies and to at-risk communities.

Service TWFS Assessment Tool C Sub factors Level Service Level Descriptor Tier C1 Dissemination Sub factor 0 Standard arrangements only. Generic messaging: included in weather forecasts and disseminated via standard dissemination arrangements. No specific flood related messaging and thus no specific dissemination. 1 General messaging at area / basin scale using standard arrangements via website and media Generic messaging: included in weather forecasts and disseminated via standard dissemination outlets. May include local government websites or social media. arrangements. At least one dissemination method of Faxstream, phone tree, recorded message. At least one of Faxstream, phone tree, recorded message. 2 General messaging at area / basin scale using standard arrangements via website and media Generic messaging: included in weather forecasts and disseminated via standard dissemination outlets. May include local government websites or social media. arrangements. At least one dissemination method of Local Wardens, FM-88, limited manual dissemination At least one of local wardens, FM-88, limited manual dissemination method (e.g. non-automated methods such as non-automated SMSing. SMSing). 3 Specific and targeted messaging to at-risk location or river reach from authorities using Generic messaging: included in weather forecasts and disseminated via standard dissemination standard arrangements. arrangements. Either direct non-automated (i.e. manual) mass dissemination methods such as social media Either manual mass dissemination (e.g. social media) or limited automated dissemination. or limited automated dissemination. 4 Specific and targeted messaging to at-risk location or river reach from authorities using Generic messaging: included in weather forecasts and disseminated via standard dissemination standard arrangements. arrangements. A combination of different dissemination methods are used, both automated and non- A combination of different dissemination and communication methods used. automated. Automated mass dissemination method. At least one direct automated dissemination method, such as mass automated SMS, is used to disseminate warning information to individuals / communities.

Notes: i) It is assumed that the higher service levels will include multiple different dissemination methods. The sub factor lists the minimum requirements to achieve that service level.

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 223 Interpretation and Consequences Assessment (Interpretation) Interpretation is the use of historic and modelled flood data (e.g. past events, flood study outputs and mapping) to identify consequences including likely flood extents, depths, velocities and properties affected. Studies may deliver detailed assessments of risk and flooding consequences, including details of infrastructure, properties and floors affected.

Service TWFS Assessment Tool E Sub factors Level Service Level Descriptor Tier E1 E2 Flood Study Sub factor Mapping Sub factor 0 No flood studies, mapping or historical recorded data. No flood studies undertaken for the at-risk location or reach. No flood mapping undertaken for the at-risk location or reach. May be anecdotal evidence. 1 Flood extent mapping limited to where historical data No flood studies undertaken for the at-risk location or reach. Flood mapping for the at-risk location (or reach) is based on available. historic events and may be incomplete. Flood information is based on historical data. Consequences assessment at region / basin scale. Any flood mapping was undertaken more than 20 years ago. 2 Limited flood study completed for the location / river reach. A flood study for the at-risk location (or reach) was undertaken Flood mapping for the at-risk location (or reach) was undertaken more than 20 years ago. more than 20 years ago. Flood extent mapping for some river heights using old modelling methods and / or historical data. Flood information and river heights are based on old modelling Any flood mapping has been undertaken at a low resolution or methods or historical data. modelling (that requires some interpretation) has been completed Some at-risk properties may be identified. for cross sections. Some interpretation may be required to determine properties at Consequences assessment at district / river reach scale. risk. May include mapping of historic flood extent(s). 3 Flood study and / or floodplain management plan A flood study for the at-risk location (or reach) has been Flood mapping for the at-risk location (or reach) has been completed for the location / river reach. undertaken within the last 20 years. undertaken within the last 20 years. Flood mapping for a river height range showing extent, Flood information including extents and river heights are based Flood mapping has been undertaken at a high resolution depths (possibly velocity) at a street scale. The likelihood on contemporary modelling methods and historical data. showing extent at the property scale. of isolation and depth of flooding of at-risk properties At-risk properties are identified along with issues such as Depth information can be interpreted. identified. isolation, egress and high risk areas. Consequences assessment at at-risk location or reach scale.

224 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 Service TWFS Assessment Tool E Sub factors Level Service Level Descriptor Tier E1 E2 Flood Study Sub factor Mapping Sub factor 4 Comprehensive flood study and / or floodplain A flood study for the at-risk location (or reach) has been Flood mapping at the at-risk location has been undertaken within management plan completed for the at-risk location / river undertaken within the last 20 years. the last 20 years. reach. Detailed flood information including extents and river heights are Flood mapping has been undertaken at a very high resolution Flood mapping for a range of river heights and historical based on contemporary and appropriate modelling methods and showing extent at the property scale. events showing extent, depths (possibly velocity) at a historical data. Depth, velocity, roads, properties and buildings affected are property / street scale. All at-risk properties are identified along with issues such as easily identifiable on the flood map. Building floor levels surveyed and at-risk properties and isolation, egress and high risk areas. floors identified. Depths, velocities, depth of over-floor flooding of affected Likelihood of isolation identified. properties and other intel exists and is available. Comprehensive consequences assessment at property / street scale.

Notes: i) Although the service levels are specific in relation to flood studies and mapping, the Tool does not as yet discriminate further in terms of (say) the number of properties affected or consequences at various AEPs, etc.

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 225

Flood Response (Response Planning) Flood response planning is currently biased towards the preparation of a Municipal Flood Emergency Plan (MFEP).

Service TWFS Assessment Tool F Sub factors Level Service Level Descriptor Tier F1 MFEP Sub factor 0 No region / basin MFEP or actions. No MFEP for region or basin. 1 Actions at the region / basin scale as per action column in MFEP Flood Information An MFEP was developed for the region more than 10 years ago. Card. An MFEP exists. It has many gaps but is competent at the regional / basin scale. 2 Actions at the district / river reach scale as per action column in MFEP Flood Information An MFEP was developed for the region more than 10 years ago. Card. An MFEP exists. It has some gaps but is competent at the catchment / reach scale. Action column in Flood Information Card completed for district / river reach. 3 Actions at the at-risk location or reach as per action column in MFEP Flood Information An MFEP has been developed for the location or reach in the last 10 years. Card. An MFEP is available and competent at the at-risk location / reach or community scale. Includes an assessment of areas that will (and won’t) be affected by flooding. Action column in Flood Information Card completed for at-risk location. 4 Detailed MFEP. Actions at the property / street scale as per action column in MFEP An MFEP has been developed for the location or reach in the last 10 years. Flood Information Card. An MFEP is available and competent at the at-risk location / reach or community scale. Includes an assessment of areas that will (and won’t) be affected by flooding. The MFEP includes actions at a detailed street and property scale in the Flood Information Card. Includes identification of and delineation between different flood sources / types and the The MFEP may include indicative flood prediction tools. extents.

Notes: i) Although the service levels are specific in relation to the state of development of the MFEP, the Tool does not as yet discriminate in terms of scale and the level of detail present in flood information cards. ii) Flood Action Guides (FAGs) are prepared as part of the MFEP development process. Ideally, FAGs will assist both community flood awareness and flood response. However, the availability or sophistication of a FAG has not been consider in any of the Flood Response sub-factors as it is considered unlikely that a FAG will actively drive an individual's response.

226 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028

Community Awareness & Education Education and Awareness tools are used or applied to improve the awareness of a community's flood risk and in relation to flood safety, risk minimisation and flood action plans.

TWFS Assessment Tool D Sub factors Service Level Service Level Descriptor D1 D2 D3 D5 D4 Tier Time since last major FloodSafe Program Sub Planning Scheme Sub Individual Property Flood Flood Class Level Sub flood Sub factor factor factor Chart Sub factor factor

0 No formal awareness of flood risk at a local Has no recorded major No FloodSafe Program No identification of flood No individual property flood Removed - does not or regional scale. flood. run at any scale through prone land in planning charts. contribute sufficiently to the catchment. scheme. education or awareness No flood awareness or education programs. of community to justify 1 Community awareness program / material at Last major flood was more No community or inclusion as a factor. region / basin scale. (No FloodSafe program than 10 years ago. township FloodSafe at location or within reach). Program. Community awareness material updated and A catchment or basin refreshed on a greater than 5 year basis. scale FloodSafe Program (with no or minimal individual engagement) was run more than 5 years ago. 2 Community awareness program, / material at Last major flood was less Generic community or Flood extents identified in district / river reach scale (e.g. FloodSafe than 10 years ago. township FloodSafe Planning Scheme zones brochures). Program has been run and / or overlays to low and the local Flood Action resolution and are either not Flood awareness is at a general level. Guide updated within the based on flood mapping or Community awareness material updated and last 5 years. do not reflect most up-to- refreshed approximately every 5 years. date flood mapping extents.

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 227 TWFS Assessment Tool D Sub factors Service Level Service Level Descriptor D1 D2 D3 D5 D4 Tier Time since last major FloodSafe Program Sub Planning Scheme Sub Individual Property Flood Flood Class Level Sub flood Sub factor factor factor Chart Sub factor factor

3 Specific and targeted community awareness Last major flood was less FloodSafe Program has Flash and / or riverine flood Individual Property Flood program / material at at-risk location or river than 10 years ago. been run within the last 5 extents identified in Charts for at-risk location or reach scale (e.g. up to date FloodSafe years for the at-risk Planning Scheme zones river reach. brochures and other materials). community. Involved and / or overlays to a high update of the local Flood resolution such that extents Flood awareness is good. Action Guide as well as on individual properties can Local community awareness material engagement at the street be identified. updated and refreshed more frequently than scale. every 5 years. Development of individual and business flood plans actively encouraged. 4 Locally specific and targeted community Last major flood occurred FloodSafe Program run Flood extents identified in Individual Property Flood awareness program / material at property / within the last year. for the at-risk community Planning Scheme overlays / Charts for at-risk location or street scale (e.g. up to date FloodSafe during the last 12 months. zones to a high resolution river reach. brochures and other materials). Involved update of the consistent with latest flood Meter box stickers local Flood Action Guide mapping, such that extents Excellent flood awareness. distributed to all at-risk as well as engagement at on individual properties can properties. Local community awareness updated and the street scale. be identified. refreshed on an annual basis. Development of individual Development of individual and business flood and business Flood plans actively encouraged and assisted. Action Plans actively encouraged with Planning Scheme delineations reflect current assistance / guidance flood mapping and flood risk. provided.

Notes i) Not all MFEPs are publicly available. Thus, while an MFEP does provide a source of local flood intelligence and can have an influence on community flood awareness, the MFEP does not feature in any of the Community Awareness and Education sub-factors.

228 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 Appendix L: Goulburn Broken regional population statistics

The following population is sourced from 2016 census data.

Municipality / Town 2016 2016 Total 2011 2011 Total 2006 Total 2001 total Urban Urban Benalla 13,861 13,252 13,252 13,319

Campaspe 37,061 35,747 35,452 34,611

Colbinabbin 304 106 Echuca 14,043 1,2596 Girgarre 561 191 Gunbower 551 260 Kyabram 7,331 5,477 Lockington 808 347 Rochester 3,113 2,551 Rushworth 1,335 950 Stanhope 828 470 Tongala 1,926 1,216 Greater Shepparton 63,827 59,648 56,115 55,210

Arcadia downs / South 292 284 Dookie 328 233 Katandra west 476 215 Kialla west 431 203 Merrigum 679 396 Mooroopna 7,942 7,813 Murchison 925 737 Shepparton east 31,197 218 Shepparton 1,138 29,553 Tallygaroopna 579 252 Tatura 4,669 3574 Toolamba 769 289 Mansfield 8,584 8,791 7,739 8,515

Bonnie Doon 570 166 Goughs Bay 261 168 Jamieson 301 114 Mansfield 4,787 3,151

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 229 Municipality / Town 2016 2016 Total 2011 2011 Total 2006 Total 2001 total Urban Urban Sawmill Settlement 88 365

Mitchell 40,918 34,405 30,629 27,544

Beveridge 2,330 468 Broadford 4,319 3,342 Kilmore 7,958 6,189 Pyalong 660 439 Seymour 6,327 5,871 Tallarook 736 204 Wallan 11,074 7,643 Wandong-Heathcote junction 2,179 1,618 Waterford Park - 201 Moira 29,112 27,923 26,525 25,475

Barmah 282 175 Bundalong 428 312 Cobram 6,01 5,370 Katamatite 401 218 996 177 Nathalia 1,880 1,434 Numurkah 4,477 3,745 Strathmerton 1,052 477 Tungamah 408 282 Wunghnu 334 239 Yarrawonga 7,930 6,824 Murrindindi 13,732 12,852 13,387 13,111

Alexandra 2,695 2,245 Buxton 492 234 Eildon 974 678 Hazeldene 250 Kinglake 1,536 1,031 Kinglake West-Pheasant Cks 1,488 818 Marysville 394 246

230 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 Municipality / Town 2016 2016 Total 2011 2011 Total 2006 Total 2001 total Urban Urban Thornton 299 136 Yea 1,587 1,087

Strathbogie 10,274 9,333 9,064 9,169

Avenel 1,048 762 Euroa 3,275 2668 Longwood 240 173 Nagambie 1,886 1513 Violet Town 874 661

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 231 Appendix M: Vulnerability and Infrastructure assessment

Summary table: At risk locations Vulnerability (no. Key Infrastructure of groups) (no. of assets) Acheron River & Tribs Alexandra Avenel Baddaginnie Barmah 2 Bearii Benalla 7 4 Bonnie Doon Broadford 1 Broken Effluent Tribs 2 Broken River Shep -Benalla 1 Bunbartha Buxton Castle Point Cobram 5 Colbinabbin Cooma Corop Lakes Area Costerfield Costerfield South Dabyminga Ck Delatite River (at Delatite Rd) Devenish East Murchison East Shepparton Eildon Euroa Ford Creek Girgarre Glenrowan Goulburn River Seymour- Shep Goulburn u/s Eildon

232 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 At risk locations Vulnerability (no. Key Infrastructure of groups) (no. of assets) Granite Creek Graytown Heathcote East Heathcote North Howqua Jamieson Katamatite 1 Katandra West Kialla West Kialla West (Orrvale) 7 2 Kilmore Kilmore East King Parrot Ck & Strath Ck d/s Flowerdale King Parrot Ck u/s Flowerdale Kinglake Central Kinglake East Koonoomoo 1 Kyabram Lake Rowan Locksley Longwood Lower Broken Creek Lower Goulburn d/s Shep Maindample Maindample Region (at Dry Ck Rd) Mangalore Mansfield Marysville Merrigum Merrijig Merton Mid Broken Creek Mid Goulburn Molesworth Mt Camel

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 233 At risk locations Vulnerability (no. Key Infrastructure of groups) (no. of assets) Muckatah Depression Murchison Murray Barmah-Echuca Murray Cobram-Ulupna Murray Piree Ck-Barmah Murray u/s Yarrawonga Murray Ulupna-Piree Ck Murray Yarrawonga-Cobram Marungi Nagambie 1 Narbethong Nathalia 3 Numurkah 4 2 Old Longwood Pheasant Creek & Kinglake West Pyalong Redcastle Reedy Creek Ruffy Rushworth Seymour 2 Shepparton/Mooroopna 1 2 St James Stanhope Strath Ck Strathbogie Sunday & Dry Ck Swanpool Taggerty Tallarook Tallygaroopna 2 2 Tatong Tatura 1 Tatura/Tongala Rural Thoona

234 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 At risk locations Vulnerability (no. Key Infrastructure of groups) (no. of assets) Thornton Tongala Toolamba Toolangi Tungamah 1 1 Tyaak Upper Broken River Upper Broken, Boosey & Majors Creeks Upper Howqua River (historical area) Violet Town 1 Waaia Whiteheads Creek Wilby Woods Point Wunghnu 1 1 Wyuna Yarrawonga Yea 2 Yea River

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 235 Appendix N: Final priority and risk assessment scores Terminology: H = High Priority, M = Medium Priority, L = Low Priority, - = No further action

Benalla Rural City Municipal Proportion Total Flood Density of Absolute Mitigation Land Use Flood Name population Warning damages damages Works Planning Emergency affected System Plan Baddaginnie 2 2 3 - L H H Benalla 5 5 4 L H H H Devenish 0 0 0 - - H M Glenrowan 1 1 0 - - - - (Rural City of Wangaratta) Swanpool 0 0 0 - - - - Tatong 1 1 0 - - M L Thoona 1 1 0 - - M L Winton i 0 0 0 L - M - i. New town area introduced following stakeholder consultation

Campaspe Shire Municipal Proportion Total Flood Density of Absolute Mitigation Land Use Flood Name population Warning damages damages Works Planning Emergency affected System Plan Colbinabbin 1 1 0 - M - M Girgarre 0 0 0 - - - - Kyabram 5 5 4 L - H M Rushworth 0 0 0 - - - - Stanhope 5 1 2 - - - - Tongala 4 1 0 - - - - Wyuna 1 1 0 - - - -

Greater Bendigo City Council Municipal Proportion Total Flood Density of Absolute Mitigation Land Use Flood Name population Warning damages damages Works Planning Emergency affected System Plans Costerfield 0 0 0 - - - - Costerfield 0 0 0 - - - - South Heathcote East 0 0 0 - - - - (Rural Living) Heathcote North (Rural - - - - Living)

236 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 Mount Camel 0 0 0 - - - - Redcastle 0 0 0 - - - -

Greater Shepparton City Council Municipal Proportion Total Flood Density of Absolute Mitigation Land Use Flood Name population Warning damages damages Works Planning Emergency affected System Plans Bunbartha 1 1 0 - - L - Cooma 1 1 0 - - - - Katandra West 0 0 0 - - H - Kialla West 3 1 2 - - - - Merrigum 4 3 4 - L - L Murchison / 2 / 3 1 2 / 3 M L H - Murchison East Shepparton 4 5 3 - H H H East Shepparton/ 3 5 4 M H H H Mooroopna Surplus Irrigation M - - - Channels Tallygaroopna 1 1 1 M - H - Tatura 5 5 3 - L - - Toolamba 4 1 3 - - M M

Mansfield Shire Municipal Proportion Total Flood Density of Absolute Mitigation Land Use Flood Name population Warning damages damages Works Planning Emergency affected System Plans Bonnie Doon 1 1 0 - - - - Gaffney’s Creek / A1 Mine 0 0 0 - - - - Settlement ii Howqua i 1 1 0 - - - - Jamieson 4 2 3 - L L L Maindample 3 1 3 - - - - Mansfield 4 3 1 - - L M Merrijig 3 1 2 - - - - Merton 0 0 0 - - - -

Woods Point ii 0 0 0 - - - - i. Include in Howqua River (Rural) Area ii. Include in Upper Goulburn (Rural) Area

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 237 Mitchell Shire Municipal Proportion Total Flood Density of Absolute Mitigation Land Use Flood Name population Warning damages damages Works Planning Emergency affected System Plans Broadford i 3 2 1 - M H H Kilmore 0 0 0 L L H H Kilmore East i 0 0 0 - L L L Pyalong 0 0 0 - - L L Reedy Creek ii 0 0 0 - - L L Seymour 5 5 3 H H H H Tallarook ii 3 1 2 - - M M

Tyaak ii 0 0 0 - - L L Whiteheads 1 1 0 M H H H Creek i. Include in the Sunday and Dry Creeks (Rural) Flood Study ii. Include in the Dabyminga Creek (Rural) Flood Study.

Moira Shire

Proportion Total Flood Municipal Flood Density of Absolute Mitigation Land Use Name population Warning Emergency damages damages Works Planning affected System Plans

Barmah 5 5 5 L M - M Bearii i 1 1 0 - - - - Cobram 5 5 4 H M - - Katamatite 3 2 4 - - L M Koonoomoo ii 1 1 0 - - L - Lake Rowan iii 0 0 0 - - L - Marungi 1 1 0 - - - - Nathalia 2 2 2 H H - M Numurkah 4 5 3 H H H H St James iii 2 1 1 - - - - Strathmerton ii - - - - Tungamah 4 3 4 H H H H

Waaia 0 0 0 - - L - Wilby ii 0 0 0 - - - - Wunghnu 3 3 4 M M M M Yarrawonga 3 4 1 H - H H Yarroweyah ii - - - - i. Include in the Murray Ulupna to Piree Creek (Rural) Area ii. Include in Murray Cobram to Ulupna (Rural) Area iii. Include in Upper Broken Creek (Rural) Area

Murrindindi Shire

238 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 Proportion Total Flood Municipal Flood Density of Absolute Mitigation Land Use Name population Warning Emergency damages damages Works Planning affected System Plans

Alexandra 3 2 2 L M H H Buxton 4 3 5 M M H H Eildon 0 0 0 - - - - Flowerdale i - - - - Kinglake 0 0 0 - - - - Central Marysville 3 1 1 - - M M Molesworth ii 1 1 0 - - - - Narbethong 0 0 0 - - - - Kinglake East, Pheasant Creek 0 0 0 - - - -` & Kinglake West Strath Creek iii 1 1 1 - - - - Taggerty 3 1 2 - - M M Thornton ii 4 3 5 - - - - Toolangi 0 0 0 - - - - Yarck iii - - - - Yea 3 2 2 - M - H i. Include in the Upper King Parrot Creek (Rural) Area ii. Include in Mid Goulburn (Rural) Area iii. Include in Lower King Parrot Creek (Rural) Area

Strathbogie Shire

Proportion Total Flood Municipal Flood Density of Absolute Mitigation Land Use Name population Warning Emergency damages damages Works Planning affected System Plans

Avenel 3 2 3 M M H M Euroa 5 4 5 H H H H Graytown 0 0 0 - - L L Locksley 1 1 0 - - L L Longwood 3 2 3 - - M L Mangalore 0 0 0 - - L L Nagambie 4 1 1 H M H H Old Longwood 0 0 0 - - L L Ruffy 0 0 0 - - - - Strathbogie 0 0 0 - - L L Violet Town 4 4 4 H H H H

Rural Study areas

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 239

Name Plans Flood Works System affected Warning Planning damages Absolute damages Land Use Municipal Density of Mitigation Proportion population Emergency Emergency Total Flood

Broken Creek Broken Creek Tributaries (Pine Lodge, Daintons, Congupna 1 5 0 - L - L Guilfus & O'Keefe Creek) Lower Broken Creek 1 5 0 - - L L Mid Broken Creek 1 5 0 - - L L Muckatah Depression 1 3 0 - L M L Upper Broken Creek 1 4 0 - M M M Broken River Lower Broken River 1 5 0 - L H H Upper Broken River 1 2 0 - M H M Goulburn System Acheron River 1 2 0 - L H L Corop Lakes 1 5 0 - - L L Dabyminga Creek 1 1 0 - - L L Delatite River 1 2 0 - - L L Ford Creek 1 1 0 - - L L Goulburn Seymour to 1 5 0 - - M M Shepparton Granite Creeks 1 5 0 - L M M Howqua River 1 1 0 - - L L Lower Goulburn 1 5 0 - - L L Lower King Parrot Creek 1 1 0 - - L L Maindample Region 1 1 0 - - - - Mid Goulburn 1 5 0 - L M M Sunday & Dry Creeks 1 1 0 - H H H Tatura/ Tongala Region 1 5 0 - - - - Upper Goulburn 1 1 0 - L L L Upper King Parrot Creek 1 1 0 - - H H Whiteheads Creek 1 1 0 - H H H Yea River 1 1 0 - - L L Murray System Murray Barmah to Echuca 1 4 0 - M H M Murray Cobram to Ulupna 1 5 0 - - H M Murray Ulupna to Barmah 1 1 0 - - L M Murray Upstream of 1 1 0 - - L L Yarrawonga

240 DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028

Name Plans Flood Works System affected Warning Planning damages Absolute damages Land Use Municipal Density of Mitigation Proportion population Emergency Emergency Total Flood

Murray Yarrawonga to Cobram 1 2 0 - L L L East

DRAFT Goulburn Broken Regional Floodplain Management Strategy 2018-2028 241